Jaros Hygienic Wear: The therapeutic and prophylactic application.

By I. Jaros

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Title: Jaros Hygienic Wear
       The therapeutic and prophylactic application.

Author: I. Jaros

Release Date: November 25, 2014 [EBook #47457]

Language: English


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  _For Sale by_

  Eagle Clothing Company,

  No. 52 North Main Street,

  CONCORD, N. H.

[Illustration: Prof Dr. Pettenkofer _Director of Hygienic Institute,
Munich._]




  JAROS HYGIENIC WEAR

  THE THERAPEUTIC AND PROPHYLACTIC
  APPLICATION.

  BY

  I. JAROS.

  WITH ILLUSTRATIONS.

  NEW YORK.
  JAROS HYGIENIC UNDERWEAR CO.,
  52 EAST 10TH STREET.




  COPYRIGHTED

  BY

  THE JAROS HYGIENIC UNDERWEAR CO.

  1890.




  FOURTH EDITION.


  To the learned gentlemen of the Medical Profession.


The comments herein given on the value of the "JAROS HYGIENIC
UNDERWEAR" are acknowledgments on the practical accomplishment of
scientific theories.

Prof. Mattieu Williams remarks:

"They present an interesting instance of how a logical effort to
apply pure science to practical business may react in such a manner,
that practical business shall become a beneficent contributor to pure
science."

I tender thanks for the kind expressions herein embodied, all of which
are given with due regard for the ethics of the profession.

  Yours,

  I. Jaros

  NEW YORK, 1890.




Contents


  Introductory Section
  Hygienic Clothing
  Philosophy of Clothing
  Hygienic Underwear
  Testimonials




Professors Von Pettenkofer, Parkes, and Buck, pronounced Hygienists,
have contributed largely to establishing theories regarding clothing
materials and their relations to health. These conclusions have led to
a more general consideration thereof, in the therapeutics, as well as
prophylaxis in medical practice.

Wool is regarded as deserving first consideration.

[Illustration: MAGNIFIED--WOOL FIBRE.]

The fibres are cylindrical collections of numerous cells, and present
each the appearance of a tube covered with epidermic scales which
overlap each other. The zigzag markings are characteristic.

Cotton, for various reasons, may be regarded as next in importance,
providing consideration be given to the manner of application, in
combination with wool.

This is fully verified by Krieger's experiments.

[Illustration: MAGNIFIED--COTTON FIBRE.]

[Illustration: SECTION SAME--COTTON FIBRE.]

The fibres of cotton appear to be made up of flat, ribbon-shaped cells,
thicker at the edges than in the middle. They are irregularly twisted,
with a broad longitudinal cavity more or less well defined. There is
frequently a kind of net-work striation apparent on the surface.

With regard to the comparative value of these fibres in application
we refer here to the Tables of Mattieu Williams, page 31 of this
Treatise. It remains, therefore, to have a material of these fibres so
constructed that it will embody all scientific essentials. The first
satisfactory material of the "Jaros Hygienic Wear" was laid before
the Medical Profession in Chicago, November, 1884, and, guided by
their suggestions, the "Wool Fleece Fabric" was so materially improved
that, on January 4, 1886, L. L. McArthur, M.D., in a paper before the
Chicago Medical Society, states: "Now, gentlemen, this device was a
particularly 'happy one,' in that all the requirements of a truly
hygienic wear are provided--porosity, warmth, absorbent powers and
elasticity."

[Illustration: JAROS HYGIENIC MATERIAL--MAGNIFIED.]

It will be seen that the material is a fleecy wool surface knitted
into a cotton framework--resembling in many essential points a
natural sheep's pelt. A prominent factor regarded in the claim for a
reproduction of the natural pelt, is the preservation of the yolk
which, if left in the wool, preserves its pliancy. It forms a kind of
natural soap, consisting principally of potash salts with animal oil
almost entirely soluble in cold water. Special care must therefore be
taken in washing the wool, and this has been one of the latest results
added to the success of the "Jaros Hygienic Material." The features
warranting precaution in scouring wool, and advised by scientists,
are based on the following possibilities: Excess of alkali has to
be guarded against, since uncombined caustic acts energetically on
the wool fibre, and is indeed a solvent of it. On this account soap
solutions cannot be too carefully prepared to prevent making the wool
brittle.

"A material of loose texture confining much air in its interstices
is warmer than same amount of clothing material closely woven.
Wool or cotton carded and spread out in the shape of a wadding
and held, will make a warmer garment than the same quantity spun
and woven, and similarly covered. This applies with force to
underclothing."--"Ziemsen," Vol. XVIII.

PROPHYLAXIS.--In the consideration of a prophylactic measure this
Underwear accomplishes the desideratum for protection.


L. D. Rogers, A.M., M.D., in a paper, states:

A fabric, therefore, so constructed as to allow a layer of woolen
fibre to lie between the skin and a layer of cotton fibre, and
sufficiently open and loose as to contain the largest possible
amount of air is the ideal. _The Jaros Hygienic Underwear material,
a new fabric, seems beautifully adapted to this end. A layer of
woolen fibres, soft and fleecy, is firmly held on one side of and
in the meshes of an exceeding porous cotton fabric, so that while
one extremity of a fibre lies against the skin, the other is in
contact with the cotton; thus admitting of the rapid transference
of all dampness of perspiration to the cotton where it is retained,
and consequently leaving no moisture next to the skin to absorb and
diminish the heat of the body. The importance of this subject, and
the possibilities of this new fabric for the prevention of colds, and
their resultant diseases, can only be appreciated when we remember the
simple fact that it is impossible to take a cold so long as a healthy
condition of the skin, and an even temperature of the surface of the
body, are maintained_.




  REPORT OF C. B. HOLMES,

  President Chicago City Railway Company.


 ""The Jaros Hygienic Underwear" has been in use with Conductors
 and Gripmen of this Company since November, 1885, having been
 recommended by the Company's Surgeon, Dr. D. A. K. Steele. We speak
 for the men in asserting that this underwear is considered the best
 possible protection against cold and changeable temperatures, which
 are especially characteristic of this latitude, and its use has
 resulted in great protection of health and a corresponding increased
 efficiency. With conductors, whose occupation necessarily prevents
 the wearing of a very heavy overcoat, it is of great advantage, and
 gripmen and drivers are enabled to thoroughly protect themselves in
 their exposed positions without an overplus of clothing, otherwise
 necessary."

 These citations might be continued at great length, covering Reports
 of Police and Fire Departments in our large cities, and from many
 Railway Corporations and Physicians.

THERAPEUTICS.--In the Therapeutics of Medicine the Underwear is
regarded as specially indicated in Rheumatism, Kidney Disease
(Bright's), and Pulmonary Consumption.

       *       *       *       *       *

  RHEUMATISM.

  J. NEVINS HYDE, A. M., M. D., gives expression as follows:

 "I have often employed the "Jaros Hygienic Underwear" in cases of
 muscular and other forms of rheumatism, and always with advantage to
 the patient. I have had knowledge of these undergarments sufficiently
 long to justify me in stating very positively that I regard them as a
 valuable means of protecting the surface of the body from the climatic
 changes to which it is much exposed."

       *       *       *       *       *

DAVID WARMAN, M. D.

 "One of my patients wearing the "Jaros Hygienic Underwear" is a
 sufferer from muscular rheumatism, and since he donned the garments he
 has not had an attack, although the weather has just been of the kind
 to produce the disease."


  KIDNEY DISEASE.

  BRIGHT'S DISEASE AND ALLIED AFFECTIONS OF THE KIDNEYS.

By CHARLES W. PURDY, M.D., Prof. of Genito-Urinary and Renal Diseases
in the Chicago Polyclinic.

 Chapter 1--Albuminuria.--Pages 54-55.

 "THE SKIN.--* * * The most thorough protection to the skin is secured
 by the use of the JAROS HYGIENIC WEAR, especially during the cold and
 damp season. * * * It will be seen that the cotton fabric secures a
 comparatively static condition of air next the skin, while the fleece
 wool combines the minimum radiation of heat from the body with the
 greatest attainable hydroscopic power, thus securing uniform dryness
 and warmth of the skin under various conditions of atmosphere. Dr. L.
 L. McArthur has demonstrated before the Chicago Medical Society the
 superiority of the Jaros Wear over all other fabrics for the purpose of
 protecting the skin against rapid changes of temperature and humidity,
 and my own experience with it altogether bears out his deduction."

       *       *       *       *       *

 DR. I. N. DANFORTH, in January, 1886, states:

 "I am much impressed with the value of the "Jaros Hygienic Wear,"
 especially in renal and other diseases in which sudden changes of body
 temperature are hazardous. I think it will prove a valuable addition
 to our means of treating chronic, renal and other diseases in which
 full protection of the skin is all important."


  PULMONARY CONSUMPTION.

J. W. PRICE, M. D.

ADDRESS BEFORE ELMIRA ACADEMY OF MEDICINE, JULY, 1887.

_Curability and Treatment of Pulmonary Consumption._

 "The dress of the consumptive patient should be adapted to equalize
 the temperature of the body, so loose that it interferes in no way
 with the natural functions. The underclothing should be woolen,
 either lamb's wool or flannel. After an extended observation of the
 benefits derived from wearing the "JAROS HYGIENIC UNDERCLOTHING,"--a
 wool fleece knit material of graded weights, adapted to the season,
 I believe it to be the best protective device yet known for these
 patients.

 "They are excellent non-conductors of changes of the temperature,
 and at the same time absorb cutaneous moisture--two most important
 qualities."

Added to these statements are many more in this Treatise.

[Illustration: WOMEN'S COMBINATION SUIT.]

Properly _fitting garments_ are advised, and as an illustration of the
results achieved, exact reproductions from life are given. The manner
and style adopted, is in keeping with all other features accomplished.
The matter of detail has been sufficiently thorough to embody also the
point of seaming.


_SEAM._

A special seam is used to overcome objections which caused discomfort
and irritation. This seam is flat, soft, and lends to the garments the
appearance of seamless wear, to which is added the perfect fit only
reached in cut and sewed underwear.

[Illustration: MEN'S SUIT.]


_CONCLUSION._

In the summary of the results of practice with the "Jaros Hygienic
Underwear" by U.S. Army Posts, U. S. Navy Pay Inspector's Department,
Police and Fire Departments, Railway Companies, etc., etc., all
scientific recommendations find verification.

Continuing the work of research and experiment, the aim is to aid the
Profession in gaining the results desired with an ideal in clothing
material.

CAUTION.--The success of the "Jaros Hygienic Wear," and the recognition
earned, has prescribed utmost care in properly stamping the Wear to
protect the Profession against possible misrepresentations.


  BELOW IS TRADE-MARK.

  [Illustration: JAROS HYGIENIC WEAR.]

  "Registered Pat. Nos. 16060, 16166."




 HYGIENIC CLOTHING.

 By L. L. McArthur, M. D.

 Treasurer Medico-Legal Society, Chicago: Attending Physician Michael
 Riess and Mercy Hospitals, Chicago.

 [Abstract of a paper read before the Chicago Medical Society on January
 4, 1886.]


The object of clothing should be the promotion and maintenance of good
health, together with a feeling of well-being under all atmospheric
conditions.

Consideration of the subject naturally sub-divides itself into:

    I. Materials.
   II. Texture.
  III. Form of clothing.

Chief among the materials used for clothing in the order of their
respective merits are linen, cotton, silk, and wool, the latter being
the best.

A few words as to these materials in the raw state:

Linen conducts heat better than cotton, silk or wool. It absorbs
moisture and does not shrink. Cotton, also a vegetable fibre, which is
hard, durable and does not shrink, has serious objections, in that it
is very non-absorbent of moisture. It does not conduct heat as well as
linen, but more rapidly than silk or wool.

Silk, an animal product, consisting of fine, smooth round fibrillæ,
having been in the liquid condition before leaving the body of the
silkworm, possesses no central canal, and no oily coating. It is
quite a good absorbent of moisture, ranking next to wool. At ordinary
temperature it always contains between 9 and 12 per centum of moisture.
In its sale or purchase, account is taken of the amount of moisture in
order to protect the purchaser from paying silk prices for water.

Wool, the fleece of sheep, an animal fibre, whose function in nature
has been two-fold, the protection from cold, and an aid to evaporation
of cutaneous moisture, is admirably fitted as a material for clothing.
It permits but slow radiation of heat, and absorbs moisture better than
any other clothing material. It does this, according to Parkes, in two
ways: 1st. By interposition between the fibres. 2d. By penetration into
the central canal. His experiments led him to believe its hydroscopic
powers double in proportion to its weight and quadruple for surface, as
compared with cotton or linen. Perfectly dried wool has the power of
absorbing 50 per centum, by weight, of water. Under ordinary conditions
it contains 12 to 18 per centum.

Other things being equal, then woolen fabrics will best prevent too
rapid radiation of heat; silk next, cotton third, linen fourth.

Wash-leather, buckskin and chamois-skin need not be considered, for
one or all of the following reasons: Expense, poor provision for
evaporation, poor washing qualities.

As absorbers of moisture, rank, respectively: wool, silk, linen and
cotton.

_The advantages of cotton over wool lie in its cheapness and
non-shrinking qualities. If properly constructed, however, the
advantageous properties of wool can be utilized without the shrinking
by using a cotton framework, into the meshes of which the loose, raw
fleece is worked._

That fabric will be best adapted for health, which combined with
greatest porosity, possesses the least (a) conductivity, (b) greatest
hydroscopic power, and (c) best shape.

By porosity is understood the freedom with which air can pass through
the interstices of a fabric. Pettenkoffer's practical demonstrations
with the following cloths, shows that if heavy flannel be taken as
permitting 100 parts of air to pass, linen permitted 60.3 or 60 per
centum; lambskin 50.7 or 50.7 per centum; silk fabric, heavy, 14.4 or
14.4 per centum; glove-leather 1.5 or 1.5 per centum.

The conclusion follows that porosity does not injure the powers of
preventing radiation (it even increases it) for flannel, admittedly the
warmest clothing, permits the freest circulation of air.

In consequence of the fact of a fabric's possessing great porosity,
it contains in its interstices what might be called "residual air."
Whether gases possess conductivity is open to discussion, but this is
certain, that such power is very small. Could we by any means envelop
the body in a layer of stationary air, we could reduce the heat-loss to
a minimum. A striking example of the poor conductivity of _stationary
air_ is related by Dr. Kane, the Arctic explorer, who found that
on perfectly still days they could withstand, without suffering, a
temperature of-70 F.,[A] with ears and hands exposed, but the moment a
breeze sprung up it became necessary to seek immediate shelter.

  [A] 70° F, below Zero.

Although impossible to perfectly accomplish this, (_i. e._, the
surrounding of body in a stationary envelope of air), that cloth or
fabric which most nearly approximates this, other things being equal,
will prove itself the warmest as well as best adapted for evaporation
of cutaneous moisture. Such a nearly stationary air occurs naturally
in the various pelts, and although in many the integument is visible
beneath, yet they can withstand the most rigorous weather. Thus
Krieger's experiments with tin cylinders containing hot water with two
coverings of different materials, between which an interval of 1/8
to 1/4 inch was left, proved (after subtracting the amount due for
conduction) the impediment to radiation by the second layer to be,
_viz_: linen, 32; silk, 32; flannel, 29.

Thus showing that the stationary air, rather than the material out of
which the second layer was made, was the main factor in preventing
radiation.

He then experimented with single and double layers of the same material
surrounding these cylinders, obtaining the following instructive
results; the numbers representing the proportionate loss of heat
through double to single layers, the losses through the single ones
being taken at 100:

  Double Stuff, ("Doppel Stoff") Fleece-lined cotton      69-76
  Buck-skin                                               74-86
  Flannel                                                    86
  Home-spun linen                                            91
  Stout, extra heavy silk                                    94

From these results the conclusion is obvious that the substance and its
weight are of less consequence, where _radiation_ is in question, than
its texture and volume. Believing that the explanation was due to the
"residual air," experiments have been made with loose wadding, noting
the rapidity of fall of temperature, on compressing the same wadding,
when the fall was far more rapid.

Again, the loss of heat through a rabbit's fur being taken as 100, when
shorn of its hair it rose to 190; and further destroying its porosity
by a coating of gum-arabic, it rose to 296. (Dict. Hygiene.)

By greatest porosity best provision is made for the evaporation of
perspiration, the quantity of which varies greatly under different
conditions. In a day of rest the amount as determined by Seguin and
Voit is 900 grams (about 1 quart). During exercise it may increase to
quantities incredible, were the figures not furnished by the best of
observers. For example: Dalton mentions its increase to 380 grams per
hour! and Dr. Southwood Smith has seen it rise to 1,600 grams per hour
during violent exercise in a heated atmosphere! Now, if a clothing
possesses no porosity, _e. g._, the mackintosh, and rubber clothing
generally, even without exercise, there would collect somewhere beneath
it a quart of water, but if exercise be indulged in, the quantity
may become large indeed; particularly after the atmosphere beneath
has been surcharged with vapor, and evaporation ceases to occur from
the surface, and with it the grateful cooling process. The French
Government has not permitted its introduction into its army for such
obvious reasons. Of course, for a short time during a shower they
may and do prove useful; but I am convinced that many have incurred
most serious injury, even death, by throwing off the rubber clothing
after the inner clothing had become permeated with moisture, when the
chilling, incident to the sudden increased evaporation, has resulted in
some acute inflammation.

Moreover, the evaporation of the normal cutaneous moisture (with that
of the lungs) requires 750 heat units or one-fifth of all the heat
produced in the system. (Dalton.) Conservation of part of this loss
contributes an equivalent amount of force to the organism, since heat
and force are interchangeable terms. _This can be done._

Under normal conditions evaporation of perspiration occurs in the
"insensible," _i. e._, vapor state, but change of these conditions
(increased heat, and moisture in the atmosphere, increased exercise,
etc.,) causes it to collect upon the integument in the visible or
sensible state, and unless conducted away, may chill the body.
Prevention of such condensation will avoid such dangerous and
deleterious influences. The cause of condensation is a lowering of
the temperature. _We have simply to maintain its temperature until at
a perceptible distance from the body. This can be accomplished by a
layer of loose wool, such as is hereafter described. The "residual air"
having been once raised to the body temperature, it remains so, and the
vapor does not assume the liquid state until meeting with the chilling
influences in the outer layer of cloth._

Finally, bodies passing from the gaseous to the liquid state emit the
heat--latent heat--which was essential to their assuming the gaseous
condition. This occurring in the case of perspiration in the cloth
interstices increases by just so much their warmth, in other words
lessens the demand for heat production.

Before leaving the subject of texture, note should be made of the
importance of its being of a loose nature. _However great the
hydroscopic power of a material in the raw state, if it be tightly
woven that power is greatly diminished, or even quite destroyed. Hence
the advantage of loosely knitted over tightly woven goods._

Important indeed is the proper fitting of clothing. However good the
materials they may then not accomplish their purpose for the following
reasons:

I. By close application to the skin certain materials acting as
cutaneous stimulants, maintaining an active equable circulation. Wool
possesses this property most markedly; even in some delicate skins
proving an irritant. A very marked increase of oily matter is excreted
over these areas where oil-glands exist in greatest abundance, _i. e._,
mesial line of thorax, in front and behind; thus improving the
flexibility of the skin.

II. By fitting neatly, chambers of air heated by the body are not
with every change of position of the wearer forced out, as occurs in
illy-fitting clothing. Upward currents of air naturally occur, and if
permitted to exist carry off large amounts of caloric. Simple attention
to these two facts reduced the death rate of the Wurtemburg Army Corps
from 3.22 to 1.64, as compared with the other departments of the German
Army.

The general application and advantages of such an ideal clothing to
diseased conditions, it is needless for me to describe to a body of
medical men; but particular references ought to be made to rheumatism
and nephritis, ("kidney troubles.") To the former, because best
provision is made for cutaneous elimination (always acid!) so essential
in that disorder, in which there is so marked a diminution in the
alkalinity of the blood; to the latter because sudden congestions are
obviated in an organ already overworked, by preventing sudden chilling
of the surface.

_It only remains for me to call your attention to my accidentally
finding such a clothing upon a patient of mine (Mr. Jaros), and the
tests to which I have put it._

_He described its history and manufacture as follows_:

"_While suffering from an attack of rheumatic sciatica in the Harz
mountains, following a peasant's advice, I enveloped myself in loose
lamb's fleece which he provided, and I experienced speedy relief. On
reaching Berlin I consulted Chief Councillor-of-Health, Dr. Abarbanell,
who advised me to have constructed some underwear with a fleece lining.
I sought a weaver and had some underwear knitted, into the meshes of
which were worked, "by hand," during the process of knitting, layers of
loose lamb's wool._"

Now, gentlemen, this device was a particularly happy one, in that all
the requirements of a truly hygienic wear are provided for.

_Porosity, warmth, absorbent powers and elasticity. With advice he
set to work and perfected a modification of the knitting machine
which incorporated into the meshes of the cloth loose lamb's wool.
The samples presented speak for themselves as to its success. By the
use of such a fabric, perspiration (unless excessive indeed) remains
in the insensible state until it meets with the cooling influences
externally in the cotton framework, the integument remaining dry, while
the cotton back, as well as the linen shirt over it, may be "wringing
wet." Exposure to cold draughts with such a suit does not chill the
integument because the sudden increased evaporation occurs at a
distance from the skin, and is separated from it by a layer of wool._

_To test the soundness of the theory I submitted myself to a
temperature of 115° F., under as nearly as possible the same
atmospheric conditions, with the three chief winter suitings, and
obtained the results in table below:_

  ====================+==============+============+============
                      |              | "Nonotuck" |
                      |  _Jaros      |    Silk    |
                      |  Hygienic    |  Suiting,  | Cartwright
                      |   Wear._     |   heavy.   | & Warner's
  --------------------+--------------+------------+-------------
  Weight after        |  8,020       |  7,867     |   10,840
   " before exposure  |  7,010 grs.  |  7,140     |    9,600
  Difference          |  1,010 grs.  |    727 grs.|    1,240
  Degree of absolute  |              |            |
    dryness of air    |   61,827     |   77.32    |   69.947
  Temp, dry bulb therm|  115° F      |  113° F    |  116°
  Temp, wet bulb therm|      9°      |     83°    |   88°
  --------------------+--------------+------------+--------------
                      |_Warm but not |Cooler than |Sticky,
                      |sticky; outer |other wear; |clammy;
  Sensation           |surface damp; |sticky; skin|wet
                      |skin dry where|damp;       |through;
                      |wear touches; |comfortable.|uncomfortable.
                      |comfortable._ |            |
  ====================+==============+============+==============

_From these experiments it is to be seen, that of all the perspiration
exuded, the silk retained (by a small amount) the least; the hygienic
wear the next, and the English woolen goods the most. Note, however,
must be taken of two facts concerning the experiment with the silk
clothing._

_1st. The temperature was 2° F. lower than when testing the hygienic
wear, and 8° than the English goods. Hence less perspiration was thrown
out._

_2d. There was a difference of 15.5° of absolute dryness of the
atmosphere, hence evaporation took place more rapidly from the silk
goods in the dryer atmosphere. The barometer remained almost stationary
during the three days of observation._

_On emerging from the hot room into one of a temperature of 70° F.,
an immediate chilling was felt with the silk goods; while the English
gave a sensation of moisture and cold. The chilly sensation was not
experienced with the woolen-lined hygienic wear._


_CONCLUSIONS._

_1st. That fleece-lined goods are warmest._

_2d. Permit at least equal evaporation with the silk._

_3. Guard against sudden chilling of the body._

_4th. Are cheaper than silk and as cheap as Cartwright & Warner's._

_5th. Are particularly indicated in rheumatism and kidney disease._




PHILOSOPHY OF CLOTHING.

BY MATTIEU WILLIAMS.

 The following extracts are from the experiments and conclusions of
 Rumford, with supplements by Prof. Mattieu Williams, of England. (See
 "Knowledge," Nos. 171 to 205, "Philosophy of Clothing.")


The physiological confirmation of these results are not quoted;
confining the citations to the qualitative value of fibres, especially
sheep's wool, and the possibility of materials therefrom that possess
the _essentials_ recommended.

The first use of clothing being to keep the wearer warm, Rumford's
first inquiry was directed to find the best material for this purpose.
He saw at once that clothing did this by resisting the passage outwards
of the animal heat.

He accordingly constructed a model wearer, as described in the
following experiments: A mercurial thermometer, whose bulb was 55/100th
of an inch in diameter, and its tube about ten inches long. This was
suspended in the axis of a cylindrical glass tube about three-quarters
of an inch in diameter, ending with a globe 1-6/10 inch in diameter,
in such a manner that the center of the thermometer bulb occupied the
center of the globe, thus leaving a surrounding space to be occupied by
the material to be examined. The thermometer tube was graduated with
800 divisions between the freezing and boiling points of water--_i. e._,
a Reaumur scale divided to tenths of degrees. The thermometer was
held in its place by a long cork stopper.

He described his method of clothing the bulb as follows: The
thermometer being taken out of the cylindrical tube, about two-thirds
of the substance which as to be the subject of the experiment is
introduced into the globe; after which the bulb of the thermometer
introduced a few inches into the cylinder; and after it, the remainder
of the substance being placed round about the tube of the thermometer:
and lastly, the thermometer being introduced further into the tube, and
being brought into its proper place, that part of the substance which,
being introduced last, remains in the cylindrical tube above the bulb
of the thermometer, is pushed down into the globe, and placed equally
round the bulb of the thermometer by means of a brass wire, which is
passed through holes made for that purpose in the stopple closing the
end of the cylindrical tube.

The temperature he selected as the starting point was 70 degrees
Reaumur=190 degrees Fahr. He preferred this to the boiling point, as
he could obtain it accurately by first plunging the whole apparatus
duly charged into nearly boiling water, then allowing it to fall to 70
degrees, and immediately plunging it into a mixture of pounded ice and
water, where, by the aid of a little agitation, it remained steadily at
the freezing point.

The following table shows the results with the substances therein
mentioned, the quantity in each case being 16 grains:

  ============+===========+=============+============
              |RAW SILK AS|             |
   HEAT LOST. |SPUN BY THE|SHEEP'S WOOL.|COTTON WOOL.
              |   WORM.   |             |
  ------------+-----------+-------------+------------
       70°    |     --    |      --     |      --
       60     |     94´´  |      79´´   |      83´´
       50     |    110    |      95     |      95
       40     |    133    |     118     |     117
       30     |    185    |     162     |     152
       20     |    273    |     238     |     221
       10     |    489    |     426     |     378
  ------------+-----------+-------------+------------
  Total times |  1,284    |   1,118     |   1,046
  ------------+-----------+-------------+------------

The clothing value or "warmth" of these substances as thus applied
varies directly with these figures, representing the passage of heat or
their "non-conducting" power.

The experiments described were directed to the determination of the
relative power of different materials. (We have only quoted the
substances most generally used for clothing purposes.) These were
followed by another series upon certain given materials differently
arranged, or in different conditions of density. The same "passage
thermometer" was used. The question to be determined was, whether the
protecting power of the substances used in the previous experiments
was due to the non-conduction of the material of those substances
themselves, or whether the air imprisoned between their fibres was an
important factor. If the silk, wool and cotton did all the obstructive
work independently of the air, then the amount of obstruction should
vary with the quantity of fibre. As, in the experiments already
described, the fibres were loosely arranged round the bulk of the
thermometer, it was easy to increase their quantity by packing them
more closely, and yet retaining the other conditions of bulk, etc., the
same.

It was evident from the results, with 16 grains, 32 grains, 64
grains, that the protective power does not increase nearly in the
same proportion as the quantity of material when packed in the same
space. Had such been the case, and the rate of cooling proportionately
retarded, the experiment (with eider down from the duck) with 64 grains
should have been 1,304x4 5,216 seconds, instead of only 1,615 seconds.

The following displays the results obtained by using the same material,
in same quantity, but differently disposed, 16 grains of each:

  --------+------+--------+-------+------+------+------+------+------+-----
          |      |Sewing  |       |      |      |      |      |      |
          |      |or      |       |      |      |      |      |      |Linen
  Heat    |      |knitting|       |Woolen|      |Cotton|      |Linen |Cloth
  lost or |      |silk    |       |Thread|      |Thread|      |Thread|wrap-
  amount  |      |wound   |Sheep's|wound |Cotton|wound |      |wound |-ped
  of      |Raw   |round   |wool,  |round |wool, |round |Lint, |round |round
  cooling.|Silk. |bulb.   |loose. |bulb. |loose.|bulb. |loose.|bulb. |bulb.
  --------+------+--------+=======+======+------+------+------+------+-----
     70°  |  --  |   --   |    -- |   -- |   -- |   -- |   -- |   -- |  --
     60   |   94"|   46"  |    79"|   46"|   83"|   45"|   80"|   46"|  42"
          |      |        +-------+------+      |      |      |      |
     50   |  110 |   62   |    95 |   63 |   95 |   60 |   93 |   62 |  56
          |      |        +-------+------+      |      |      |      |
     40   |  133 |   85   |   118 |   89 |  117 |   83 |  115 |   83 |  74
          |      |        +-------+------+      |      |      |      |
     30   |  185 |  121   |   162 |  126 |  152 |  115 |  150 |  117 | 108
          |      |        +-------+------+      |      |      |      |
     20   |  273 |  191   |   238 |  200 |  221 |  179 |  218 |  180 | 168
          |      |        +-------+------+      |      |      |      |
     10   |  489 |  399   |   426 |  410 |  378 |  370 |  376 |  385 | 338
  --------+------+--------+=======+======+------+------+------+------+-----
  Tot.    |      |        |       |      |      |      |      |      |
  times.  |1,284 |  904   | 1,118 |  934 |1,046 |  852 |1,032 |  873 | 786
  --------+------+--------+-------+------+------+------+------+------+-----

From this it is to be seen that sheep's wool loose would retard the
passage of heat more perfectly than when spun into thread.

THE "JAROS HYGIENIC MATERIAL" _of sheep's wool unspun worn next the
body possesses the essentials for non-conduction of heat in a manner
described_.

It is an instance how an effort to apply pure science to practical
business may react in such manner that practical business shall become
a beneficent contributor to pure science.

Another practical question suggested is: Whether clothing materials
differ in their powers of absorbing the cutaneous exhalations; if
so, which are the most effective, and what are the relations of
this function to that of confining air, and thereby maintaining the
temperature of the body? If these two functions are opposed, then how
shall we effect a compromise? If, on the other hand, they go together
in any special material, the desirability of using this material is
doubly indicated.

_Sheep's wool_ does absorb (see Knowledge 191) the aqueous vapor.
Loosely distributed fibres of wool in a suitable fabric take hold of
the vapor of the insensible perspiration in the gaseous form, and by
virtue of gaseous diffusion continually exchange this with the gasses
of the outer atmosphere.

The conclusion, therefore, is that such a material is best suited for
clothing, both in winter and summer.

Sir John Billingall (lecturer on Military Surgery) mentions his
experience in India, and the proof of the utility of wool in checking
the progress of a most aggravated form of dysentery in the Second
Battalion of the Royals. The result of this has led to the enforcement
of the use of belts for tropical service. Mr. Sage of the Army Clothing
Depot at Pemlico, tells me many thousands have lately been made there.

My experience and subsequent observations have proven that, although
loosely woven flannels may advantageously prevent the sudden chills
from the evaporations of accumulated perspiration, this is better _done
by a knitted fleecy wool fabric worn next the skin_.

  JAROS HYGIENIC MATERIAL,
  WOOL FLEECE KNIT.




  HYGIENIC UNDERWEAR

  BY L. D. RODGERS, A. M., M. D.

  (From Peoples' Health Journal, October, 1885.)


Considerable scientific attention has recently been very profitably
devoted to the question of fabrics for underwear most conducive to
health. Interesting experiments have been made developing facts which
will surprise almost everyone on learning them for the first time. One
of the simplest and most readily understood of these experiments was
that of filling tin cans with hot water and wrapping each one with a
different fabric, and then observing with thermometers the varying
rapidity in the loss of heat. Thus showing accurately the relative
heat preserving value of each fabric. Of two cans surrounded with the
same amount of common cotton batting, in one case the cotton being
compressed, and the other not, the loss of heat was found to be much
more rapid in the former than in the latter. Showing, therefore,
conclusively, that loose open fabrics are warmer than those which
contain less air in their interstices. This accords with the well-known
fact that the new flannel is warmer than old which has undergone the
felting or fulling processes. Assuming that flannel contains 100 units
of air in its interstices, the permeability of other substances have
been found to be as follows: Linen, 58; silk, 40; buckskin, 58; kid,
1; chamois, 51. Doubling the layers of any given material does not
diminish the loss of heat in the same proportion. Assuming the loss
of heat through a single layer to be 100, through a double layer of
the same material it is found to be as follows: Thin silk, 97; gutta
percha, 96; shirtings, 95; stout silk, 94; thick home-spun linen,
91; chamois leather, 88-90; flannel, 86; summer buckskin, 88; winter
buckskin, 86. Thus we see that the loss of heat through two layers of
thin silk is only three per cent. less than through one layer. The
inference is that what the substance is and what its weight, does
not make so much difference as its texture and volume. How the body
may lose heat rapidly by wet clothing, and ill results follow, is
shown by the following experiment: A rabbit was shorn of its fur, its
temperature was then found to be 102 degrees. It was wrapped with a wet
cloth and placed in a room, the temperature of which was 66 degrees. At
the expiration of five hours the temperature of the rabbit was found
to be 76 degrees. The capacity of water to absorb heat is known to be
greater than any other substance. Now, when our clothing is damp from
perspiration or from any other cause, our bodies lose just as much heat
as the moisture in our clothing is capable of absorbing. The importance
of always having dry material next to the skin is evident, and that
material which will retain the least moisture is the best. Woolen
fibre is found to answer this purpose more nearly than any other.
In addition to its well-known filtering capacity, it has a greater
stimulating action upon the skin than any other. On the other hand,
cotton fibre, on account of its great capillary attraction, rapidly
absorbs and retains moisture. A fabric, therefore, so constructed
as to allow a layer of woolen fibre to lie between the skin and a
layer of cotton fibre, and sufficiently open and loose as to contain
the largest possible amount of air is the ideal. _The Jaros Hygienic
Underwear material, a new fabric, seems beautifully adapted to this
end. A layer of woolen fibres, soft and fleecy, is firmly held on one
side of and in the meshes of an exceeding porous cotton fabric, so that
while one extremity of a fibre lies against the skin, the other is
in contact with the cotton; thus admitting of the rapid transference
of all dampness of perspiration to the cotton where it is retained,
and consequently leaving no moisture next to the skin to absorb and
diminish the heat of the body. The importance of this subject, and
the possibilities of this new fabric for the prevention of colds, and
their resultant diseases, can only be appreciated when we remember the
simple fact that it is impossible to take a cold so long as a healthy
condition of the skin, and an even temperature of the surface of the
body, are maintained._




  TESTIMONIALS

  EXTRACTS--RENAL DISEASE, GEN'L VALUE.

BRIGHT'S DISEASE AND ALLIED AFFECTIONS OF THE KIDNEYS.

BY CHARLES W. PURDY, M. D., Prof. of Genito-Urinary and Renal Diseases
in the Chicago Polyclinic.

  Chapter 1.--Albuminuria.--Pages 54-55.

THE SKIN.--"* * * The most thorough protection to the skin is secured
by the use of the JAROS HYGIENIC WEAR, especially during the cold and
damp season. * * * It will be seen that the cotton fabric secures a
comparatively static condition of air next the skin, while the fleece
wool combines the minimum radiation of heat from the body with the
greatest attainable hygroscopic power, thus securing uniform dryness
and warmth of the skin under various conditions of atmosphere. Dr. L.
L. McArthur has demonstrated before the Chicago Medical Society the
superiority of the Jaros Wear over all other fabrics for the purpose of
protecting the skin against rapid changes of temperature and humidity,
and my own experience with it altogether bears out his deduction."

       *       *       *       *       *

  CHRONIC BRIGHT'S DISEASE OF THE KIDNEYS.

J. H. PRICE, M. D., Elmira, N. Y.

(Abstract of Paper read before N. Y. State Medical Society, July, 1886.)

"Fleece lined or silk under garments, according to the season, should
be worn next to the skin the entire year. I would especially recommend
for these patients the "Jaros Hygienic Underwear." These garments are
light, warm, and delightfully soft. They afford full protection to the
body against sudden chilling."

       *       *       *       *       *

  PHYSICIANS--RENAL DISEASE, GEN'L VALUE.

MOSES GUNN, M. D., LL. D., Treas. Rush Medical College, Professor
Surgery, 2101 Calumet Ave.

MR. J. JAROS.               CHICAGO, Dec.  10,  1885.

I have been wearing for the past few weeks the fleece-lined
underclothing of the Jaros Hygienic Wear.

As a protection in extreme cold weather, this fabric is most
comfortably efficacious. It also reduces to a minimum the unpleasant
chilly sensations incident to a sudden change from an overheated room
to the untempered cold of out-door winter weather. It possesses,
therefore, hygienic value.

  MOSES GUNN, M. D., LL. D.

       *       *       *       *       *

DE LASKIE MILLER, PH. D., M. D., Secretary Rush Medical College, Prof.
Obstetrics.

MR. J. JAROS, City.          CHICAGO, Dec.  10, 1885.

I have examined specimens of your "Jaros Hygienic Wear" with much
interest. In material and construction these garments fulfill
completely the requirements of the scientific essentials in underwear,
insuring to the highest degree both the comfort and the health of the
wearer, and as such I recommend them.

  DE LASKIE MILLER, Ph. D., M. D.

I concur in the above.

J. ADAMS ALLEN, M. D., LL. D., President Rush Medical College Prof.
Practice of Medicine.

       *       *       *       *       *

I. N. DANFORTH, A. M., M. D., Prof. of Renal Diseases, Chicago Medical
College.

  Chicago Medical College, Medical Department
  Northwestern University, CHICAGO, Jan. 6, 1886.

J. JAROS, Esq.

MY DEAR SIR:--I am much impressed with the value of the Jaros
Hygienic Wear, especially in renal and other diseases in which sudden
changes of body temperature are hazardous. I think it will prove a
valuable addition to our means of treating chronic, renal and other
diseases in which full protection of the skin is all important.

  Yours truly,
  I. N. DANFORTH, A. M., M. D.

       *       *       *       *       *


PHY'S--PULMONARY CONSUMPTION, BRONCHITIS.

W. F. BOGART, M. D.

  BLACK HAWK, COLO., Feb'y 5, '89.

JAROS HYGIENIC UNDERWEAR CO., Chicago, Ill.

Gents:--I am delighted with your underwear for myself, and always
recommend it to my patients that are troubled with Lung or Bronchial
diseases.

  Respectfully,
  W. F. BOGART, M. D.

       *       *       *       *       *

ADDRESS BEFORE ELMIRA ACADEMY OF MEDICINE, JULY, 1887.

  _Curability and Treatment of Pulmonary Consumption._

  BY J. W. PRICE, M. D.

The dress of the consumptive patient should be adapted to equalize the
temperature of the body, so loose that it interferes in no way with the
natural functions. The underclothing should be woolen, either lamb's
wool or flannel. After an extended observation of the benefits derived
from wearing the "JAROS HYGIENIC UNDERCLOTHING,"--a wool fleece knit
material of graded weights, adapted to the season, I believe to be the
best protective devices yet known for these patients.

They are excellent non-conductors of changes of the temperature, and at
the same time absorb cutaneous moisture--two most important qualities.

       *       *       *       *       *

S. B. MUNN, M. D.

  WATERBURY, CONN., Jan. 17, 1888.

JAROS HYGIENIC UNDERWEAR CO.:

I take great pleasure in recommending your HYGIENIC UNDERWEAR as the
best I have ever seen.

I have been wearing it now about four months, and can say it is the
best protection from colds, and being so thoroughly a non-conductor,
prevents the wearer from all ill effects of sudden changes of
temperature; also a Rheumatic Prophylactic.

A lady patient of mine, who has suffered some four years with chronic
bronchitis, is now wearing it, and is already very much relieved and
improving faster with it, and without medicine, than she has previously
with medicine, and at the same time wearing good flannel.

  Respectfully yours,
  S. B. MUNN, M. D.

       *       *       *       *       *

  PHYSICIANS--BRONCHITIS, RHEUMATISM.

ROBERT HUNTER, M. D., No. 103 State Street, corner of Washington.

MR. J. JAROS:             CHICAGO, Oct. 24, 1885.

Dear Sir:--I have great pleasure in expressing my entire approval of
your underwear. It affords a better protection to the body in our
variable climate than any kind of flannel in use. Nothing but wool
is fit to maintain the capillary circulation of the skin, preserve
warmth and promote insensible perspiration, without which good health
impossible. I find your garments invaluable in the treatment of lung
complaints, and recommend them to all my patients.

  ROBERT HUNTER, M. D.

       *       *       *       *       *

JAMES NEVINS HYDE, A. M., M. D., Professor of Skin and Venereal
Diseases, Rush Medical College, 204 Wabash Avenue,

  CHICAGO, February 17, 1888.

Gentlemen:--I take especial pleasure in saying that I have often
employed the _Jaros Wear_ in cases of muscular and other forms of
rheumatism, and always with advantage to the patient.

I have had knowledge of the value of these undergarments for a period
of time sufficiently long to justify me in stating very positively that
I regard them as a valuable means of protecting the surface of the body
from the climatic changes to which it is much exposed in this part of
the country.

  JAMES NEVINS HYDE.

       *       *       *       *       *

J. E. HARPER, A. M., M. D.

Prof. Ophthalmology and Otology, College Physicians and Surgeons,
Ophthalmic College, and Attending Surgeon Oakwood Retreat, Lake Geneva,
Wis.

  CHICAGO, June 6th, '88.

To J. JAROS, Chicago, Ill.

Dear Sir:--I have felt for some time that I would like to give
expression to my high regard for your "Hygienic Underwear," and hope
you will accept the following as a spontaneous estimate of its value as
an adjunct to the treatment of certain diseases as well as a reliable
prophylactic. I have used your underwear in my family and recommended
it to my patients during the past year, and am firmly convinced that
its merits can not be overestimated as regards a comfortable and
protecting material for undergarments.

Persons affected with the rheumatic diathesis, those who have weak
heart or lungs, and those having catarrhal troubles, or who take cold
easily, should use your underwear constantly.

  Respectfully,      J. E. HARPER.

       *       *       *       *       *

  PHYSICIANS--RHEUMATISM.

JOHN H. PRICE, M. D., Sec.'y Chemung County, Med. Soc., N. Y.

J. JAROS, Esq.              Elmira, N. Y., Apr. 29, 1887.

My Dear Sir:--The object of clothing is to preserve the proper heat of
the body, by protecting it both from cold and heat, and thus to prevent
the injurious actions of sudden changes of temperature upon the skin.
This object is most admirably accomplished by the "Jaros Hygienic
Wear." I have demonstrated this most important fact in my own person
during the past six months. For several years past I have been much
annoyed by occasional attacks of muscular Rheumatism. Since I began to
wear the "Jaros Hygienic Clothing" I have been almost entirely free
from these attacks. I deem them a valuable auxiliary in the treatment
of _Consumption, Bright's Disease and Rheumatism_.

  Very truly yours,

  JOHN H. PRICE, M. D.

       *       *       *       *       *

E. J. DORING, M. D., President Chicago Medico-Legal Society, 2406
Prairie Avenue.

  CHICAGO, Jan. 14, 1888.

MR. J. JAROS.

Dear Sir:--Referring to your letter of the 12th, I wish to say in reply
that I have frequently had occasion to recommend your Underwear for
patients suffering from Rheumatism, Neuralgia, etc., and have been
entirely satisfied with the results obtained. I shall continue to
recommend it.

  Very respectfully,
  EDWIN J. DORING, M. D.

       *       *       *       *       *

NORMAN BRIDGE, M. D., Prof. of Pathology and adjunct Professor of the
principles and practice of Medicine, Rush Medical College.

  CHICAGO, 6, 5, 1888.

J. JAROS, Esq.

Dear Sir:--One winter's practical use of the Underwear manufactured
by your company, as well as the observation of the use of it by
others have convinced me of its great value as an under clothing for
protecting the body against cold and various diseases in some measure
incident thereto, especially rheumatoid affections. The physical
principles of its construction appear to be correct, and it is
certainly very agreeable to the wearer.

  Most truly yours,
  NORMAN BRIDGE.

       *       *       *       *       *

DAVID WARMAN, M. D.      TRENTON, N. J., Feb. 11, 1888.

JAROS HYGIENIC UNDERWEAR CO., Chicago, Ill.

Dear Sirs:--My experience with your Hygienic Underwear, though somewhat
limited at present, I cheerfully give you. One of my patients wearing
it is delighted, and so am I. The patient was a sufferer from Muscular
Rheumatism, and since he donned your garments he has not had an attack;
although the weather has just been of the kind to produce the disease.
In this peculiar and ever changing climate of ours, it is important to
wear woolen undergarments the year round. They not only protect from
cold, but heat as well, by aiding in evaporation from the body and
keeping the surface warm.

The principles upon which your wear is constructed is undoubtedly
correct, in maintaining a healthy and normal action of the skin and
thereby diminishing the liability to taking cold. I take great pleasure
in recommending them to my patients.

  Sincerely yours,
  DAVID WARMAN.

       *       *       *       *       *

R. W. BISHOP, A. B., M. D., Prof. Physiology and Dermatology, Chicago
Med. College.

  CHICAGO, Aug. 29, 1887.

JAROS HYGIENIC UNDERWEAR CO.

I have much pleasure in stating that I have used your Underwear for
several years, and have found it invaluable as a safeguard against
many of the ills caused by sudden and severe climatic changes. I also
prescribe it for Rheumatism.

  Yours respectively,
  R. W. BISHOP.

       *       *       *       *       *

S. A. CONKLING, M. D.

  CANTON, OHIO, Feb. 14th, 1888.

JAROS HYGIENIC CO., Chicago, Ill.

Gentlemen:--After a trial during the past winter of the JAROS HYGIENIC
WEAR I am fully satisfied of its merits in both protecting and properly
airifying the body, and especially do I recommend it as being well
calculated for persons predisposed to a rheumatic diathesis and a
general weakened condition of the nervous system, thereby greatly
preventing liability in contracting colds. I also recommend it as a
good general underwear because of its absorbing powers.

  I am, respectfully yours,
  S. A. CONKLING, M. D.

       *       *       *       *       *

GEO. K. FRANKS, M. D.

  BURTON, W. Va., Feb. 13, 1888.

J. JAROS, Esq.

I have been wearing this winter the fleece-lined underwear of your
manufacture.

As a protection in extreme cold weather, especially for physicians in
the country who have often to get out of a warm bed and ride several
miles in the coldest weather, it has no equal. I have tried silk, as
also the best of ordinary flannels, but they fall far short of the
Jaros Underwear.

It has always been my misfortune. I was easily affected by cold, viz:
easy to take cold. Since wearing the Jaros Hygienic Underwear I have
not had a single cold.

For the underwear I claim as much a specific in rheumatism as quinine
in intermittent.

Since wearing your goods I have never had a single attack, while before
I have not passed a winter without experiencing several severe attacks
in the last twenty years.

  Respectfully yours,
  GEORGE K. FRANKS.

       *       *       *       *       *

U. S. NAVY.--PAY INSPECTOR DEPARTMENT, U. S. Naval Academy.

  ANNAPOLIS, MD., Feb. 23, 1889.

Gentlemen:--I cannot refrain from expressing to you the great
satisfaction and enjoyment I have received from the use of your Jaros
Hygienic Underwear during the past winter. I have been almost free from
rheumatic pains, from which I have heretofore suffered greatly, and
also enjoyed an exception from severe colds, which is a very unusual
luxury with me in the winter season; all of which I must attribute to
the protection afforded by my Hygienics. I am also gratified to find
that with the proper care in washing there is no perceptible shrinkage.
In short, in every way, I find them the most desirable article I have
ever seen for the object to be attained.

I shall be so loth to part with them that I hope you will manufacture a
lighter grade for summer wear.

You are at liberty to make any use you may see fit of my testimony.

  Very truly yours,
  THOS. T. CASWELL,
  Pay Inspector U. S. Navy.

       *       *       *       *       *

  FROM RT. REV. BISHOP CHENEY.

CHAS. EDW. CHENEY.

  Rector's Study, Christ Church, 2409 Michigan Avenue,}
  CHICAGO, Nov. 29, 1886.}

J. JAROS, Esq., Room 5, Central Music Hall, City.

Dear Sir:--I take pleasure in saying, that by the advice of my
physician, I obtained from you two suits of "Jaros Hygienic Wear." I
commenced wearing the same two weeks ago Saturday last. Up to that
time I had been a sufferer from a torturing rheumatic pain in my right
shoulder, which persisted in waking me about 4 o'clock every morning,
and which medicines seemed to relieve only temporarily. From the hour
that I commenced the use of your Underwear, I have never had the
slightest twinging of this pain. I feel under personal obligations to
you for the relief which I have experienced.

  Very truly yours,
  CHAS. EDW. CHENEY.

       *       *       *       *       *

W. C. DAVIS, M. D., cor. W. Washington Street and Belmont Avenue.
WEST INDIANAPOLIS, Ind., Feb. 14, 1888.

J. JAROS, Chicago, Ill.

My Dear Sir:--I have prescribed your Underwear for the use of patients
with chronic rheumatism, and always with very satisfactory results. It
is also most excellent in the case of persons whose flesh is easily
irritated by the ordinary flannel underwear, being soft and light as it
is warm.

  Respectfully,
  W. C. DAVIS.

       *       *       *       *       *

F. H. VAN LIEW, M. D.

MR. J. JAROS.          HINSDALE, Ill., May 24, 1887.

Dear Sir:--There has been a want in the truly hygienic features in
the undergarments so generally offered, which has in many cases added
obstacles in the treatment of certain diseases. I feel satisfied that
the "Jaros Hygienic Wear" possesses the great essentials in clothing,
maintaining an even temperature over the entire body and transmitting
moisture in the manner peculiarly claimed for your material. The effect
on such patients as I have prescribed it is satisfactory indeed, and
the experience on my own person in a case of Articular Rheumatism
of long standing, is truly marked. The condition of my body for the
last two winters, during which I have used the "Wear," was a feeling
of comfort and relief from pain, formerly caused by every change of
temperature. For Rheumatism and Catarrhal patients I am free to say
this is a valuable adjunct to our means of treating same.

  Yours very truly,
  F. H. VAN LIEW, M. D.

       *       *       *       *       *

JOHN H. PAGE, Major 11th Infantry, U. S. A.

MR. J. JAROS, Chicago, Ill.         FORT YATES, DAK., Aug. 18, 1886.

Dear Sir:--I am personally delighted, with your underwear, and shall
use no other. Was free from rheumatic pains last winter, and I
attribute it to the healthy condition of my skin from the use of your
clothing.

  Very respectfully,
  JOHN H. PAGE.

       *       *       *       *       *

  PHYSICIAN's--GEN'L VALUE.

We refer, with permission, as to the Scientific Principles and Hygienic
merits of the Jaros Hygienic Wear.

To H. A. JOHNSON, M. D., LL. D., Emeritus Professor, Chicago Medical
College, and

N. S. DAVIS, JR., A. M., M. D., Adj. Prof. Practice Principles of
Medicine, Chicago Medical College.

       *       *       *       *       *

OSCAR, C. DEWOLF, A. M., M. D., Prof. Hygiene, Chicago Medical College,
Commissioner of Health.

  City of Chicago Department of Health,}
  CHICAGO, Dec. 24, 1884.}

I have been wearing during the past cold the Jaros Hygienic underwear.
I have never worn underclothing which gave me so much satisfaction. The
garments are light, warm and delightfully soft, and if properly washed
retain their fleecy wool surface.

  OSCAR C. DEWOLF, A. M., M. D.

       *       *       *       *       *

MARY HARRIS THOMPSON, M. D., Clinical Prof. of Obstetrics and
Gynæcology, Women's Med. College,
  26 Central Music Hall,
MR. J. JAROS.                 CHICAGO, Nov. 15, 1885.

Dear Sir:--The "Jaros Hygienic Wear" is unsurpassed in its purpose of
retaining an equable temperature and moisture of the surface of the
body, thus preventing an undue and sudden chilling, thereby inducing
catarrhs of the mucus membranes, conditions so common in this latitude.
Its economy and therapeutic value is apparent.

  Respectfully,
  MARY HARRIS THOMPSON, M. D.

       *       *       *       *       *

ROBERT H. BABCOCK, M. D., No. 70 Monroe Street, Room 29.

MR. JAROS.              CHICAGO, Feb. 10, 1887.

Dear Sir:--I am sincere in expressing a favorable opinion of the "Jaros
Hygienic Wear" so far as my experience allows me to judge. The patients
to whom I have recommended it are of delicate health, very susceptible
to cold. They uniformly expressed themselves as pleased with the
garments made for them by you, and as having suffered far less from the
cold this winter than usual: a result which they attribute directly to
the power of the underclothing to prevent sudden chilling of the body
upon transition from a high to a low temperature. Personally, I have
worn the underclothing all winter, and believe my unwonted freedom from
attacks of bronchitis due to the efficient protection afforded by the
underwear. Your cloth seems to me to be a better non-conductor than
other woolen materials, and therefore particularly suitable to persons
with heart or lung disease.

  I am, very truly yours,
  ROBERT H. BABCOCK, M. D.

       *       *       *       *       *

PLYMMON S. HAYES, M. D., Prof. Gynæcology, Chicago Polyclinic.

MR. J. JAROS.                         CHICAGO, Aug. 11, 1886.

Dear Sir:--I have found all the indications of a truly Hygienic Wear in
your underclothing, and certainly consider it the ideal wear for this
climate.

  Yours truly,
  PLYMMON S. HAYES, M. D.

       *       *       *       *       *

We further refer, with permission, as to the therapeutic and
prophylactic value of the Jaros Hygienic Wear, to the following medical
gentlemen:

S. SMITH, M. D., Emeritus Prof. Materia Medica and Therapeutics,
Hahneman Medical College, Chicago.

A. E. SMALL, A. M., M. D., Prof. Principles and Practice of Medicine,
Hahneman Medical College, Chicago.

MILTON JAY, M. D., Prof. Surgery, Dean Bennett Med. College, Chicago.

D. A. CASHMAN, M. D., Prof. Hygiene, Bennett Med. College, Chicago.

ALBERT LEFFINGWELL, M. D.

JAMES C. JACKSON, M. D., Head of Staff, Sanitarium, Dansville, N. Y.

       *       *       *       *       *

L. J. KELLOGG, M. D., Cor. Seventh and I Streets.

J. JAROS, ESQ.           SACRAMENTO, Cal., July 19, 1886.

Dear Sir:--In regard to your goods I am very glad to state their worth.
They have proven more efficient than any other wear in the actions
for which truly hygienic wear is sought, and therefore I cheerfully
recommend it to my patients. It laundries beautifully without shrinking.

  Sincerely yours,
  L. J. KELLOGG, M. D.

       *       *       *       *       *

H. TYLER WILCOX, M. D., Cor. Garrison Avenue and Gamble Streets.

MR. J. JAROS.         ST. LOUIS, Mo., Jan. 31, 1887.

Dear Sir:--With reference to the use of your "Hygienic Wear" I would
say that I am greatly pleased with it. All my patients have been
benefited from its use, and are delighted, some saying they would not
part therewith for double the cost. In debilitated _Nervous Troubles_,
_Kidney_, and especially _Lung Complaints_, it is a therapeutic agent,
almost indispensable in this and all northern climates.

  Respectfully,
  H. TYLER WILSON, M. D.

       *       *       *       *       *

D. W. BLISS, M. D., 621 Thirteenth Street, N. W., Attending Surgeon
on late President Garfield.

  WASHINGTON, D. C., Oct. 30, 1887.

JAROS HYGIENIC UNDERWEAR CO.

Gents:--I have been very favorably impressed with the value of your
underwear, and especially for persons of impaired health, as a
protective measure against the pronounced thermal changes of this
locality, and am free to recommend their use.

  Very respectfully yours,
  D. W. BLISS.

       *       *       *       *       *

J. H. THOMPSON, M. D., 204 Wisconsin Street.

MR. J. JAROS, Chicago,            MILWAUKEE, Wis., Jan. 29, 1887.

Dear Sir:--After months of wear and prescription of the "Jaros Hygienic
Clothing," I can fully endorse it as the best wear now used, and I
confidently advise it for its prophylactic and therapeutic properties.

  J. H. THOMPSON, M. D.

       *       *       *       *       *

P. M. LUSSON, M. D.

MR. J. JAROS, Chicago:          SAN JOSE, Cal., Feb. 6, 1887.

Dear Sir:--I am pleased to state that the "Jaros Hygienic Wear" has
proven the nicest wear worn or prescribed by me, and have found them of
great value in treatment of delicate patients. By a more general use
many people would recover health or prolong life.

  Respectfully yours,
  P. M. LUSSON, M. D.

       *       *       *       *       *

WM. H. HAWKES, M. D., 1330 New York Avenue.

MR. J. JAROS, Chicago;  WASHINGTON, D. C., Feb. 5, 1887.

Dear Sir:--There is indeed need of undergarments as you manufacture
in a climate so variable. I am satisfied with the hygienic principles
underlying them, and have been pleased in prescribing them. Shall be
glad to know that the wear is procurable in Washington.

  Very truly yours,
  WM. H. HAWKES, M. D.

       *       *       *       *       *

J. F. JENKINS, M. D.

  TECUMSEH, Mich., Aug. 28, 1887.

JAROS HYGIENIC UNDERWEAR CO.

Gentlemen:--During the winter of 1886 I had the pleasure of testing
your underwear on my own person. I found your "Wear" comfortably
efficacious throughout the various changes of a severe winter, and in
every way it justifies the representations made by you. I shall not
hesitate to recommend the "Wear" to my patients where it is indicated.

  Yours truly,
  J. F. JENKINS.

       *       *       *       *       *

F. A. DUNSMOOR, M. D.,
  Dean Minneapolis Hospital College.

  MINNEAPOLIS, Dec. 7, 1887.

JAROS HYGIENIC UNDERWEAR CO.

I cheerfully certify to the use and prescription of your Hygienic
Underwear. It is the most agreeable and warmest underclothing I ever
tried. I am satisfied that in theory and practice it is the best Wear
on the market for our climate.

  Truly yours,
  F. A. DUNSMOOR.

       *       *       *       *       *

E. L. TOWNSEND, D. D. S., Secretary, Southern California Odontological
Society, 237 S. Spring street.

  LOS ANGELES, Jan. 29, 1888.

JAROS HYGIENIC UNDERWEAR CO., Chicago, Ill.

Gentlemen:--The goods purchased of you have given perfect satisfaction,
and I have not failed to recommend the underwear to my patients and
friends.

The climate here is such that makes your goods almost a necessity, and
when properly introduced, I think no invalid will consider himself well
clothed without a suit of the JAROS HYGIENIC UNDERWEAR.

  I am, yours truly,
  E. L. TOWNSEND.

       *       *       *       *       *

A. J. AUTEN, M. D., corner of Wabash and 3d Streets,

  ST. PAUL, Minn., Jan. 1888.

MR. JAROS.

Dear Sir:--The Jaros Hygienic Wear meets with my most hearty
approbation. It is an ideal of perfection in every respect.

  Respectfully,
  A. J. AUTEN.

       *       *       *       *       *

CLARA BLISS HINDS, M. D., 607 Thirteenth street, N. W.

  WASHINGTON, D. C., Feb. 1888.

My Dear Sir:--My attention was called to your Hygienic Underwear
during the session of the International Medical Congress in our city
last September. Being then in search of underwear, which combined
the requisite of warmth, lightness and durability, I determined to
try yours, hoping to find an article which I could with confidence
recommend.

I take pleasure in saying that after wearing the garments four months I
find them all I had hoped, and even more.

I have recommended them in several cases of uterine trouble, as well as
for delicate children, and without an exception the patient improved,
which, as other conditions were equal, I know was due to the underwear.

Maintaining an even warmth over the entire surface of the body the
circulation is improved, the various organs respond, and a general
improvement in the patient is the result.

I unhesitatingly recommend the Underwear, and earnestly hope that many
physicians may try it in chronic uterine troubles, and in the wasting
diseases of childhood, as I feel great good to suffering humanity will
come through this agency.

  Respectfully,
  CLARA BLISS HINDS.

       *       *       *       *       *

  REPORTS--GEN'L VALUE

O. M. VAUGHAN, M. D.

  COVERT, Mich., Jan. 27, 1888.

JAROS HYGIENIC UNDERWEAR CO., Chicago, Ill.

Dear Sir:--The Underwear that I purchased of you has proved entirely
satisfactory. I find it just the thing in this climate where sudden
changes in the temperature are almost a daily occurrence.

I seldom wear an overcoat except when riding. Indoors I only wear a
light summer coat. The Underwear keeps one warm.

  Very respectfully,
  O. M. VAUGHAN.

       *       *       *       *       *

H. A. HAMILTON, M. D.

  PERRYSBURG, Ohio, Feb. 21, 1888.

MR. J. JAROS.

Dear Sir:--In every instance in which I have recommended the JAROS
HYGIENIC UNDERWEAR it has been highly satisfactory, answering all the
indications claimed for it.

  Respectfully,
  H. A. HAMILTON.

       *       *       *       *       *

CASPER BARSTOW, M. D.

  EAST HARTFORD, Conn., Jan. 26, 1888.

MR. JAROS.

Dear Sir:--After wearing the _Jaros Hygienic Wear_ thus far during the
winter, I take pleasure in speaking of its merits.

I consider it _the best_ kind of underwear ever made. Never having been
able to wear any kind of woolen underwear before on account of the
irritation it produced, I was made glad when I found that the _Jaros
Hygienic Wear_ did nothing of the kind. The principles of the goods is
one of the best.

I experience no chilly feeling now when going from a heated room and
into the cold wind, as I always did with any other underwear.

The fitting of the garment is another great feature, it being the same
after repeated washing, so unlike any other woolen garments.

  Respectfully yours,
  CASPER BARSTOW.

       *       *       *       *       *

ROBT. STEVENSON & CO., 92 and 94 Lake Street.

J. JAROS, Esq.       CHICAGO, Dec. 1st, 1886.

Dear Sir:--Two years ago I was prostrated by intercostal neuralgia.
My physician--Dr. W. H. Denslow Lewis, of Hyde Park--prescribed your
underwear, which I have worn ever since, both summer and winter.

They afford me great comfort, and have thus far warded off all
neuralgic symptoms, although my duties compel me to sit in a draft much
of the time.

  Sincerely yours,
  I. GILES LEWIS.

       *       *       *       *       *

H. M. BINGHAM, M. D., 170 Juneau Ave.

  MILWAUKEE, Dec. 31, 1887.

JAROS HYGIENIC UNDERWEAR. CO., Chicago, Ill.

Gents:--In two cases of chronic disease I have seen a very good effect
from the _Jaros_ Underwear, and I am in the habit of recommending this
wear to all my patients, and in lectures to students.

  H. M. BINGHAM.

       *       *       *       *       *

GEO. HOMAN, M. D., Prof. Hygiene, Surgeon Police Department, St. Louis.

  ST. LOUIS, MO., Jan'y 20, 1888.

J. JAROS, Esq., Chicago, Ill.

Dear Sir:--I am enabled by personal experience to testify to the
comfort derived from the use of your Wear during the cold weather,
and that the anticipated objection occurring to me before trial,
namely, that the unmixed wool in contact with the skin might prove
uncomfortable, has not appeared. In softness and warmth I have never
worn any fabric that equals it, while my original impression at first
sight in regard to the scientific construction of the principals upon
which it is based, has been strengthened by experience.

  Very truly yours,
  GEO. HOMAN.

       *       *       *       *       *

R. HARVEY REED, M. D., Surgeon Chief, Baltimore & Ohio R. R. Co.,
Secretary State Sanitary Association, Ohio.; Treasurer National
Association Railway Surgeons.

  MANSFIELD, O., March 9, 1888.

MR. J. JAROS, Chicago, Ill.

Dear Sir:--From personal experience I find your Underwear the most
comfortable and the best safeguard from taking cold of anything of the
kind I have ever seen.

I have no hesitancy whatever in heartily seconding it for Railroad
employees, Police and Fire Departments, as especially well suited for
their use, or any person exposed to the sudden changes of the weather
in our climate.

  Yours very truly,
  R. HARVEY REED, M. D.

       *       *       *       *       *

J. E. HARRIS, M. D.

  AUXVASSE, MO., Feb. 5, 1889.

JAROS HYGIENIC UNDERWEAR CO., Chicago, Ill.

Gentlemen;--It gives me great pleasure to say that after having tried
your wear I find it affords an admirable protection from cold, and so
far as preserving the warmth of the body is concerned, I regard it
useful as a prophylactic and therapeutic agent.

  Yours truly,
  J. E. HARRIS, M. D.

       *       *       *       *       *

JAMES COLLINS, M. D., 704 Franklin Street.

  PHILADELPHIA, PA., Feb. 5, 1889.

JAROS HYGIENIC UNDERWEAR CO.

Gentlemen;--It affords me pleasure to state that I have found your
underwear elastic, pleasant and durable. Especially is this wear
indicated where there is a disposition to active perspiration, as the
peculiar arrangement of the fibres of the wool prevents the surface of
the body from continuing damp and sticky.

  Yours truly,
  JAMES COLLINS, M. D.

       *       *       *       *       *

FRANK B. GOLLEY, M. D., 116 Grand Avenue.

  MILWAUKEE, WIS., Jan. 31, 1889.

JAROS HYGIENIC UNDERWEAR CO., Chicago, Ill.

Gentlemen;--The underwear purchased of you for use in my family has
been a source of great comfort. The usual so called cold taking and
chilliness incident to our changeable climate has, I am glad to say,
failed to appear since your goods were used. Shall recommend them
wherever opportunity affords.

  Respectfully,
  F. B. GOLLEY, M. D.

       *       *       *       *       *

F. B. KELLOGG, M. D.

  NEW HAVEN, CONN., Mar. 25, 1886.

I have tried the Jaros Hygienic Wear in my practice and consider it
superior to anything I have seen for maintaining the surface of the
body at an equable temperature. It is a safeguard against sudden
chills, and hence of great service to sensitive temperaments in a
changeable climate.

  Yours truly,
  F. B. KELLOGG, M. D.

       *       *       *       *       *

G. E. ABBOTT, M. D.

  BRYN MAWR, PA., Feb'y 13, '89.

JAROS HYGIENIC UNDERWEAR CO., Chicago Ill.

Dear Sir:--After careful personal examination, I do not hesitate to
recommend your wear. It fulfills the demands of Hygiene and of comfort.
I have found it of great service as a therapeutic agent in cases in
which there is want of nervous or vascular tone--prevalent complaints
in this climate. Also in chronic diseases and general enfeeblement
when it is essential that the peculiar susceptabilities to changeable
climatic conditions should be guarded against.

  Yours truly,
  G. E. ABBOTT, M. D.

       *       *       *       *       *

S. D. KENNEDY, M. D.

  ANNAPOLIS, Md., July 15th, 1890.

MR. I. JAROS.

Your communication of July 1st received. In three cases in which I have
had occasion to note the use of the "Hygienic Underwear," it seems to
have accomplished all that is claimed for it as a remedial agent.

  Very respectfully,
  S. D. KENNEDY.

       *       *       *       *       *

ASA HORR, M. D., 1131 Main Street.

  DUBUQUE, IOWA, May 19th, 1890.

TO MR. I. JAROS, Chicago, Ill.

Your underwear has been prescribed by me in a number of cases in which
I considered proper protection important. In rheumatic cases I have
found it of special benefit, as also in pulmonary and kidney affections.

My decided conviction is that its use will prove materially
advantageous in connection with other treatment in such cases. The
body is thereby protected from sudden chilling under climatic changes,
and that is most important. I shall take pleasure in continuing to
prescribe your "Hygienic Underwear," and hope your further endeavors
will meet with the success it deserves.

  Yours very truly,
  ASA HORR, M. D.

       *       *       *       *       *

H. D. DIDAMA, M.D., LL. D., Dean of the College of Medicine,
Syracuse University.

  SYRACUSE, July 3d, '90.

DEAR MR. JAROS.

I have commended your Hygienic Wear because I regard it as the best in
the market.

It is specially useful for asthmatics, and for those who suffer from
bronchial catarrh, because it protects from sudden and often disastrous
changes of atmospheric temperature. And then it is so unirritating and
comfortable and delightful to the wearer.

  Yours truly,
  H. D. DIDAMA, M.D., LL.D.

       *       *       *       *       *

A. L. TALMAGE, M. D., 8 Park Street.

  NEW HAVEN, CONN., 4-20-89.

Gentlemen:--The Jaros Hygienic Underwear gives me entire satisfaction,
and I cheerfully recommend it.

  Respectfully.
  A. L. TALMAGE, M. D.

       *       *       *       *       *

J. H. TILDEN. M. D.

  WICHITA, KAN., Feb. 6, 1889.

JAROS HYGIENIC UNDERWEAR CO., Chicago, Ill.

Gentlemen;--Your Hygienic wear is all you represent it to be. Those for
whom I ordered suits are well pleased, and say they will not dispense
with same, and signify their intention of ordering again when they
need. It is a therapeutic and prophylactic agent, and every one ought
to know of your wear, and wear it.

  Respectfully,
  J. H. TILDEN, M. D.

       *       *       *       *       *

DR. A. CRAWFORD.

  MILES, IOWA, Feb'y 2, 1889.

JAROS HYGIENIC UNDERWEAR CO., Chicago, Ill.

Gentlemen:--I have this to say about your wear. It has been tested both
by myself and a number of my patients, for over two years, and always
with the most satisfactory results. The durability of these goods is
beyond my expectations. I do not expect to wear any other, nor change
in my recommendations while these are on the market.

  Respectfully yours,
  A. CRAWFORD, M. D.

       *       *       *       *       *

JOHN W. FLICK, M. D.

  HONEOYE FALLS, N. Y., Feb'y 1889.

JAROS HYGIENIC UNDERWEAR CO., Chicago, Ill.

Dear Sirs:--While I do not believe in the practice of recommending
to others everything or anything you like yourself, I must make an
exception to the rule in the case of your Hygienic Underwear. For years
I have had difficulty in finding the right quality of underwear for
myself, always trying my best to secure the best in the market, but
oftener disappointed than pleased. The goods of your manufacture please
me in every respect, and all to whom I have recommended them speak in
the highest terms of them. There is no doubt in my mind but that many
of our winter diseases and ailments could be avoided, and others easier
cured, by the use of these undergarments. You have my best wishes for
success.

  Truly yours,
  J. W. FLICK, M.D.

       *       *       *       *       *

E. L. R. THOMSON, 1162 Chapel St.

  NEW HAVEN, CT., April 18, 1889.

Gentlemen:--Permit me to add a word to the many which you have
undoubtedly already received in favor of the Jaros Hygienic Underwear.
I have worn them for two winters and one summer and am happy to express
myself as perfectly satisfied with them, for I find they more fully
meet my requirements than any other underwear now upon the market.
It is enough for me to say that my experience with them has proven
conclusively to me that they possess all the properties ascribed to
them by the makers.

  Yours very truly,
  E. L. R. THOMSON.

       *       *       *       *       *

J. F. MERRY, General Western Passenger Agent, Illinois Central Ry.

  MANCHESTER, IA., Oct. 6, 1888.

JAROS HYGIENIC UNDERWEAR CO., Chicago.

Gentlemen:--I am not in the habit of giving testimonials, and as a
rule am opposed to any thing of the kind, but after suffering from
rheumatism and kindred diseases for several winters, I was persuaded by
a friend to try Hygienic Underwear, and I am compelled to say that from
the time I began using them last November until spring I did not have a
touch nor a single chill during the entire winter, and I am confident
that it was attributable to the use of your Underwear, and I have not
hesitated to recommend them at every opportunity.

  Yours truly,
  J. F. MERRY,
  Gen'l Western Passenger Agent.

       *       *       *       *       *

In a letter to a friend, Mr. Merry wrote at the time of receiving the
Underwear as follows.

  MANCHESTER, IA., Dec. 1, 1886.

Going home yesterday to dinner, I found awaiting me a suit of
underwear, and I was not very long in putting myself inside of them,
but with no idea that I could wear them, having tried almost everything
that contained wool, but never having found a garment I could wear next
to my skin containing a particle of wool. I have worn the suit for
two days without an unpleasant sensation; on the contrary, they are
delightful, and just what I needed.

Please have the following order filled for me.

  Yours truly,
  J. F. MERRY.

       *       *       *       *       *

GEO. P. CARPENTER, M.D.

  CEDAR RAPIDS, IA., May 20, 1890.

I have examined the Jaros Hygienic Underwear, and consider it the most
perfect protection from severe cold and changes in temperature that I
ever saw. Especially will this underwear be useful for those afflicted
with rheumatism, lung troubles, or a dry condition of the skin. If the
actual use of these goods substantiates the theory I have formed, they
will be a valuable aid in the treatment of diseases, as well as to the
comfort of the wearers.

  Respectfully,
  GEO. P. CARPENTER, M.D.

  TO I. JAROS.

       *       *       *       *       *

Among others we refer also to the following medical gentlemen regarding
the Therapeutic and Prophylactic value:

  Dr. Adair, J. W., Massilon, Ohio,
  " Bingham, H. M., Milwaukee, Wis.,
  " Blodgett, Youngsville, Pa.,
  " Barnes, G. W., San Diego, Cal.,
  " Beers, J. E., Ithaca, N. Y.,
  " Barber, L. P., Tracy City, Tenn.,
  " Clements, J. M., Oxford, Pa.,
  " Cleveland, N. B., Chicago, Ill.,
  " Clairebone, Herbert, Petersburg, Va.,
  " Crain, M., Rutland, Vt.,
  " Franks, Geo. K. Burton, W. Va.,
  " Garth, Thomas, Clarion, Ia.,
  " Hollister, Chicago, Ill.,
  " Hood, T. B., Washington, D. C.,
  " Heizman, C. L. (U. S. A.), West Point, N. Y.,
  " Leeds, L. L., Lincoln, Ill.,
  " Lowring, Valpariso, Ind.,
  " Morgan, Dudley, Washington, D. C.,
  " Moore, A. V., Ambia, Ind.,
  " Porter, M. G., Lonaconing, Md.,
  " Pierce, N. H., Chicago, Ill.,
  " Sutton, K. P., Lewisburg, Ky.,
  " Tye, Geo. A., Chatham, Canada,
  " Vaughan, O. M., Coverts, Mich.,
  " Woodward, A. W., Chicago, Ill.,
  " Weems, E. W., Spokane Falls, Was.,
  " Young, H. B., Burlington, Ia.,
  " Yonkey, W. P., Rossville, Ind.,
        and many others.




  FOLLOWING REPORTS
  FROM

  Equipment Branch, U. S. Army,
  Pay Inspector's Department, U. S. Navy,
  Police, Fire Departments,
  Railroad Companies, Etc.




  NATIONAL ASSOCIATION FIRE ENGINEERS.

  PROCEEDINGS SIXTEENTH ANNUAL CONVENTION.

  MINNEAPOLIS, MINN., Aug. 15, 16, 17 and 18, 1888.

  REPORT OF COMMITTEE ON EXHIBITS.


_To the President and Members of the National Association Fire
Engineers._

GENTLEMEN:

The undersigned Committee on Exhibits begs leave to submit the
following as their report:

THE JAROS HYGIENIC UNDERWEAR FOR FIREMEN.

Underwear is a prime factor in acting as a guard against influences
from without, and if of a properly constructed material, must tend much
toward raising the efficiency of men in service, and thereby increase
the standard of an already progressive department. The material--the
Jaros Hygienic Wear--is a combination of unspun wool knitted into the
meshes of a spun cotton fiber. This is after the recommendation of
most eminent medical scientists in America and Europe. The wool unspun,
worn next the body, acts as a cutaneous stimulant (guarding against
irritation so often apparent with spun fiber), the body temperature
being stored between the individual fibers, prevents the cold from
directly striking the body from without (acting like double casement
windows in a house), and, therefore so valuable when men are forced
to sudden changes from in-doors to the cold of out-doors. The wool,
again, absorbs moisture from the body, and transports it readily to the
outer framework of cotton, thereby protecting against the possibility
of wet clothing next the skin to chill the surface at every change
in temperature. The cotton framework without, makes the material
two-fold in its action; for while the wool has a power of absorption
of moisture, the cotton has that of attraction and retention, so that
any perspiration exuded from the body is taken up by the cotton from
the wool and retained, while any water from without striking the cotton
surface is attracted and retained, and prevented from penetrating
through to the body. With all this, the material is porous, and does
not therefore, retard the poisonous exhalations from passing off.
The material is as nearly non-shrinkable as can be claimed of any
material, owing to the cotton back, thereby having an underwear which
will fit properly at first as well as last. No laps or folds to allow
air to circulate next the body are apparent, where the consideration
of shrinkage is discarded (which is the case with wear of spun wool,
whether knitted or woven.) The wear is also more durable. The cost
within the line of good woolen underwear. With a due consideration of
all the scientific as well as practical facts and experiences, the
Surgeon General of the United States Army recommended the wear to the
Quartermaster-General, War Department, U. S. Army, and the result of
experience by men and officers has given this underwear prominent place
under the equipments of the Northwestern posts. They also point with
great pride and satisfaction to the service among Police and Firemen
in such cities where practical application has been made. They feel
assured that the consideration of this subject, though comparatively
new with the chief officers of our departments, will gain a hearing,
with the view of raising the condition of the men.

Your Committee, upon examination, would recommend it for your
consideration.

Very respectfully submitted,

  Chief, Providence, R. I.    G. A. STEERE,
   " Macon, Ga.               L. M. JONES,
   " Springfield, Mass.       A. P. LESHURE,
   " New Albany, Ind.         C. T. MATTHEWS,
   " New Orleans, La.         THOS. O'CONNOR,

  Committee.


  FIRE DEPARTMENT REPORTS

  CHICAGO FIRE DEPARTMENT.

Through introduction of Dr. O. C. DeWolf, Commission of Health, to
Chief Swenie, of Fire Dept., the following report was the result with
the men of 1st Battalion with the extra heavy fleece wear:

JOHN REDELL, Chief of 1st Battalion, C. F. D.

  Fire Department of the City of Chicago,}
  CHICAGO, ILL., Feb. 17, 1886. }

J. JAROS, Esq.:

Sir:--Having become interested in the results from wearing your
underwear by myself and my men, I am pleased to state their own
experience, which is satisfactory in _every particular_, as to
protection against the cold and changeable temperature; raising the
general condition of the body, and maintaining an even temperature
under all the trying conditions; does _raise their efficiency_.
Personally, I can corroborate the good effect from wear, through the
most trying conditions.

  Very respectfully,
  JOHN REDELL.

       *       *       *       *       *

FROM CHICAGO FIREMEN--CAPTAINS OF COMPANIES.

This document, signed by Captains of different companies, was made for
the purpose described, in the interest of the Officers and Firemen of
those and other companies.

  CHICAGO, June 10, 1888.

JAROS HYGIENIC UNDERWEAR CO.

Gentlemen:--After thorough application of your Hygienic Underwear for a
time sufficiently long to testify to its superiority for firemen during
climatic changes in winter, we are satisfied of its filling all claims
you make.

We are desirous of further adoption, and respectfully beg you to make
such arrangements as will gain for us your next season's contract price.

Thanking you for your endeavors in our interest we have the honor to be

  Yours respectfully,
    ROBERT PALMER,       Captain Engine No.  1.
    CORNELIUS MANNING,      "      "     "   6.
    JOHN HENNESSY,          "      "     "  13.
    E. C. ANDERSON,         "      "     "  17.
    JOHN FITZGERALD,        "      "     "  19.
    MICHAEL R. DRISCOLL,    "      "     "  32.
    MICHAEL EHRET,          "      "     "  42.
    NICHOLAS WEINAND,       "      "     "  14.
    JAMES HEANEY,           "      "     "   5.
    JOHN LYNCH,             "      "     "  18.
    DAVID J. MAHONEY,       "      "     "  29.
    HENRY GREENHOFF,        "      "     "  11.
    JOHN COOK,        Captain Hook and Ladder No. 2.
    ISIDORE P. SMITH,    "     "    "    "     "  9.
    PATRICK DOYLE,       "     "    "    "     "  5.
    F. J. RIESS,         "     "    "    "     "  3.
    Etc., Etc., Etc.

       *       *       *       *       *

REPORT OF FIRE MARSHAL TO THE CITY COUNCIL OF THE CITY OF CHICAGO, FOR
THE FISCAL YEAR ENDING DECEMBER 31, 1888.

In the report of Chief Swenie on the health of Department, the
following is stated:

"Compared with previous years the mortality of the Department during
the past year has been light."

       *       *       *       *       *

  BOSTON FIRE DEPARTMENT.

JOHN W. REGAN, Ass't Chief.

  Boston Fire Department,       }
  BOSTON, May 23, 1889.}

JAROS HYGIENIC UNDERWEAR CO., Chicago, Ill.

MR. JAROS--Dear Sir:--There has been so great a progress in the
excellence of service in our Fire Department that it is safe to say we
are now at a time when it is necessary to consider matters that will
preserve the good condition of our working forces (the firemen).

The work you are doing in this direction deserves encouragement with
Fire Departments; for a recount of the value of proper underwear comes
strikingly before us after the use of the "Jaros Hygienic Underwear."
The experience of our men has been very satisfactory indeed in every
manner, protecting against the dangerous influences of the extremes
that a fireman must suffer in winter. My first impulse was to consider
the claims you made as exaggerated, but a few facts which are my
experience will illustrate to you how fully this underwear meets the
ideals for protection.

I have been a sufferer of rheumatism for many years, contracted in
service. Since I have worn your underwear it has not troubled me at
all, though I have been subjected to trying service the last winter.

On Saturday evening, the 6th of October, 1888, I put on your underwear.
It was cold and wet, typical New England weather. We had a fire in
a six-story building on the water front lasting four hours. I came
out of it with the water coming out of the tops of my rubber boots,
_completely wetted through_, so that I had to undress in the yard of my
dwelling when I got home. No ill effects were the result of that; when
otherwise I would have cough, cold, and surely rheumatic attacks.

About November 15th we had a very bad fire and had to fight it three
flights before we got to the top, the sixth story. Usually I get wet at
a fire. In this I did not, but instead I became thoroughly overheated
from wearing a very heavy pilot cloth coat and the result was, that I
got _sweated through_ and _through_. I did not get home until 3 o'clock
in the morning (nearly six hours), but _I felt splendid_. With other
underwear, best woolen, I always experienced a cold wet sensation under
similar circumstances, down my back, and generally miserable until I
could make a change.

This I consider the most important test for firemen and I feel more
than ever that the "Jaros Hygienic Underwear" fills a long felt want in
Fire Departments. I cheerfully say: I would not be without it and many
of our men join me in this and say money cannot buy it from us.

Wishing you further success in the introduction of a truly meritorious
article and one based on scientific principles, I am

  Yours truly,
  JOHN W. REGAN, Ass't Chief.

       *       *       *       *       *

  NEW HAVEN, CONN., FIRE DEPARTMENT.

  Headquarters New Haven Fire Department,}
   Office, No. 15 City Hall.}

Gentlemen:--The "Jaros Hygienic Underwear" furnished by your firm to a
large number of the members of the New Haven Fire Department for winter
wear has given very general satisfaction. Many of the men who have
practically tried them, express themselves highly pleased and state
that they would not wear anything else as a substitute if the cost was
much higher than what they paid for them.

They are no doubt of great value as a protection against the sudden
changes in our climate and proof against taking cold.

  Very respectfully,
  A. C. HENDRICKS, Chief Fire Dept.

       *       *       *       *       *

BRIDGEPORT, CONN., FIRE DEPARTMENT.

  BRIDGEPORT, CONN., April 16, 1889.

Dear Sir:--The "Jaros Hygienic Underwear" furnished by you to myself
and the officers and members of the Bridgeport, Conn., Fire Department
have proved _all_ you recommended of them, and I think no fireman
should be without them.

  Respectfully yours,
  CHAS. A. GERDENIER, Chief Fire Dept.

       *       *       *       *       *

  CITY OF CLEVELAND, OHIO.

  Office Board of Fire Commissioners,
  AUGUST 25, 1890.

  A. J. SPENCER, Secretary.

MR. I. JAROS, New York.

Dear Sir:--A thorough examination of the "Jaros Hygienic Underwear"
has proven to me the correctness of the scientific theories upon which
it is based. In view of the necessity of a most thorough protection
for firemen to guard against the influences of weather and service, I
have taken particular interest in going into the details of what this
Underwear will accomplish. The reports from other departments place
this Underwear as an important requirement of their clothing, and my
impression is that the benefits to men in service in this department
will be marked. From the mention made by Chief Dickinson on the value
of this Wear my opinion is fully borne out.

  Very respectfully,
  L. L. TRAVIS, M.D.,
  Surgeon Cleveland Fire Dept.

       *       *       *       *       *

  FIRE COMMISSION OF DETROIT, MICH.

  Office of the Secretary,}
  August 21, 1890.}

MR. JAROS.

My Dear Sir:--In reply to your inquiry relative to the benefits derived
by our men from the use of your Wear, I beg to state that I have yet to
learn of a single case of illness due to exposure of any man who has
worn these garments. They were introduced into this Department about
three years ago, and quite generally adopted by our men. As I have
said, our records do not show that a man was obliged to go off duty
during any cold months of the year on account of sickness. I know of
several who did not get the Wear who were ill, and purchased it later
on account of the good words said of it by their comrades. The Wear is
very popular in this Department, and from what our men tell me, they
prefer it to any other.

  Very truly yours,
  JAMES E. TRYON, Secretary.

       *       *       *       *       *

  FIRE DEPARTMENT, CITY OF ST. PAUL.

  ST. PAUL, Minn, Jan. 1, 1890.

MR. I. JAROS.

Dear Sir:--The Jaros Hygienic Underwear has been in use with us
for last three seasons, and I can highly recommend it to all Fire
Departments, as this underwear is considered by us as the best possible
protection against cold and changeable temperatures, which are
especially characteristic of this latitude, and its use has resulted in
great protection of health and a corresponding increased efficiency,
and I find them the most desirable article I have ever seen for the
object to be attained.

  Very truly yours,
  JOHN JACKSON,
  Chief Engineer.

       *       *       *       *       *

  OMAHA, NEB., FIRE DEPARTMENT.

  Office of Chief Engineer Omaha Fire Department, }
  OMAHA, NEB., Feb. 21, 1887.}

J. JAROS, Esq., Chicago, Ill.

Dear Sir:--With regard to the "Jaros Hygienic Wear," extra heavy
fleece, I can say they have given eminent satisfaction among the
number of members of the Omaha Fire Department, who have found it
very comfortable in the biting blasts of winter, while fighting fire
in exposed streets. These impenetrable undergarments are just the
necessity for men whose calling keep them out doors in winter and at
nights, and they will certainly meet with approval by all who try them
in rigorous weather, as they were unanimously commended by my brave
fellows in this metropolis of the Upper Missouri.

  Yours respectfully,
  J. J. GALLIGAN,
  Chief Fire Dept.

       *       *       *       *       *

The Underwear has been largely used in the following Fire Departments,
and the reports received from the men are satisfactory.

  NEW YORK CITY, N. Y.
  BROOKLYN, N. Y.
  HARTFORD, CONN.
  NEWARK, N. J.
  DETROIT, MICH.
  GRAND RAPIDS, MICH.
  MILWAUKEE, WIS.
  ST. PAUL, MINN.
  MINNEAPOLIS, MINN.
  EVANSVILLE, IND.
  HYDE PARK, ILL.
  TOWN LAKE, ILL.

       *       *       *       *       *

  POLICE DEPARTMENT REPORTS.

  CHICAGO POLICE DEPARTMENT.

INSPECTOR OF POLICE, City of Chicago,
  CHICAGO, January, 1889.

On the recommendation of Dr. Henrotin, Surgeon of Police and Fire
Departments, to Chief and Inspector of the Chicago Police Department,
the "Jaros Hygienic Underwear" was brought to the notice of the members
of the force, and has been used for a number of years with greatest
satisfaction. The consideration of personal Hygiene to raise the
efficiency of policemen, is gaining more general attention by Heads of
Departments, and my personal observation as Inspector of this force is
corroborative of, the necessity of regarding the question of clothing
for officers; especially during the inclement and cold seasons, from
October 1st to April 1st, when disabilities arise from exposure, which
result in pulmonary and kidney troubles and rheumatic affections.

The "Jaros Hygienic Underwear" has proven a most efficient
guard, raising the condition of the men, and bearing out fully
the recommendations of Dr. Henrotin. My personal experience is
corroborative of this. Proper underwear makes an overplus of outer
clothing, which is debilitating for men in service, unnecessary. I take
pleasure in giving my opinion, and the result of experience with our
men, and do not doubt that the underwear, when applied, will assert its
worth in all the claims that are made for it.

  JOHN BONFIELD, Inspector of Police.

       *       *       *       *       *

  ST. LOUIS POLICE DEPARTMENT.

  Office of Board of Police Commissioners, Four Courts,
  ST. LOUIS, MO., Feb. 3, 1888.

CHIEF OF POLICE.

JAROS HYGIENIC UNDERWEAR CO., Chicago, Ill.

Dear Sirs:--From experience of men now using your Wear, it is indeed
satisfactory. The Wear is all that you claim for it, and cannot fail of
further adoption.

  Very truly yours,
  FRANK R. TATE, Secretary.

       *       *       *       *       *

  ST. LOUIS POLICE DEPARTMENT.

GEO. HOMAN, M. D., Prof. Hygiene.

  SURGEON POLICE DEPARTMENT, St. Louis.

  ST. LOUIS, MO., January 20, 1888.

J. JAROS, Esq., Chicago, Ill.

Dear Sir:--I am enabled by personal experience to testify to the
comfort derived from the use of your Wear during the cold weather,
and that the anticipated objection occurring to me before trial,
namely, that the unmixed wool in contact with the skin might prove
uncomfortable, has not appeared. In softness and warmth I have never
worn any fabric that equals it, while my original impression at first
sight in regard to the scientific construction of the principals upon
which it is based, has been strengthened by experience.

  Very truly yours,
  GEO. HOMAN, M. D.

       *       *       *       *       *

  DETROIT POLICE DEPARTMENT.

 Accepted by advice of Dr. Book, Surgeon of Police Department, to
 Police Commissioners, Dec. 29, 1886.

JAMES E. PITTMAN, Superintendent of Police.

  SUBJECT, "JAROS HYGIENIC WEAR."

  Metropolitan Police Department,}
  Superintendent's Office, DETROIT, MICH. April 22, 1887.}

MR. J. JAROS, Chicago.

Dear Sir:--I take pleasure in stating that the members of this
department who used your undergarments (ex. heavy fleece) during the
past winter, are unanimous in expressions of approval and satisfaction.
They proved to be fully as efficacious for comfort, and protection
against cold and change of temperature, as was promised for them. I
have no doubt that the use of these garments, which was limited (it
being first season) during the past winter, will be greatly extended in
this department in the future.

  Respectfully,
  JAMES E. PITTMAN.

       *       *       *       *       *

The Detroit Departments are now generally using the Underwear. The
satisfaction and benefits from continued use being more marked.

       *       *       *       *       *

  WASHINGTON, D. C., POLICE DEPARTMENT.

  Headquarters of the Metropolitan Police,

  WASHINGTON, D. C., Sept, 29, 1887.

JAROS HYGIENIC UNDERWEAR CO., Chicago, Ill.

Gents:--I beg to say, in reply to your inquiry, that the Surgeons of
this Department made a very favorable report upon the Underwear of your
manufacture.

  Very respectfully,
  W. G. MOORE, Major and Supt.

       *       *       *       *       *

  MINNEAPOLIS, MINN., POLICE DEPARTMENT.

  Minneapolis Board of Police Commissioners,
  MINNEAPOLIS, MINN., March 20, 1889.

JAROS HYGIENIC UNDERWEAR CO., Chicago, Ill.

Gentlemen:--I have talked with nearly every man in our Department that
is using your Underwear; also with a number of members of the Fire
Department. Every man is emphatic in pronouncing your Underwear vastly
superior to anything ever used by them before. You will undoubtedly
continue placing the goods with our Department. Personally I wish to
say, that I have tried most of the standard makes of Underwear, but I
never wore anything that gave me such perfect satisfaction and uniform
comfort as your goods.

This is not written on your solicitation.

  Very respectfully,
  H. A. NORTON,
  Sec'y Board Police Commissioners and Mayor's Sec'y.

       *       *       *       *       *

  POLICE DEPARTMENT OF THE CITY OF MINNEAPOLIS.

  MINNEAPOLIS, MINN., Aug. 17, 1888.

  (Report.)

DR. E. S. KELLEY, Surgeon of Police.

On a recount of the benefits derived by the policemen of our Department
last winter, I have found a full confirmation of the claims made for
the "Jaros Hygienic Underwear." The peculiarly cold and persistent
changes of temperature made the last season trying for the physical
condition of our officers; added to this a class of winter cholera
prevailed here, which was very debilitating. The observations have been
that all the men who wore the "Jaros Hygienic Underwear" were free from
these attacks, and maintained a normal condition throughout.

  E. S. KELLEY, M. D., Police Surgeon.

       *       *       *       *       *

The Underwear has been largely used in the following Police
Departments, and the expressions of the men are satisfactory.

  NEW YORK CITY, N. Y.
  BROOKLYN, N. Y.
  BROOKLYN AND NEW YORK BRIDGE POLICE.
  NEWARK, N. J.
  HARTFORD, CONN.
  NEW HAVEN, CONN.
  ST. PAUL, MINN.
  TOWN LAKE, ILL.
  CHICAGO PARK POLICE.

       *       *       *       *       *

  U.S. ARMY AND NAVY REPORTS.

REPORT EQUIPMENT BOARD, U. S. ARMY.

  War Department, Quartermaster General's Office,}
  WASHINGTON, D. C., Sept. 13, 1887.}

Board met this day.

Present:--Col. Chandler and Capt. Rodgers.

After carefully examining the Wool Fleece Underwear submitted by MR.
JAROS, of Chicago, and having read his testimonials in its favor,
the Board begs leave to report that this underclothing possesses
considerable merit and would, doubtless, prove very acceptable to
troops serving in high latitudes.

  (Official Copy.)

  JOHN RODGERS, Capt. & M. S. K., U. S. A.

  War Department, Quartermaster General's Office,}
  WASHINGTON, D. C., Sept. 20, 1887.}

MR. J. JAROS, Chicago, Ill.

Sir:--In compliance with your request of the 17th inst., I herewith
inclose a copy of the report of the Equipment Board of this office
upon the Fleece Underwear presented by you for the examination of this
Department.

I have no objection to the publication of said report.

  Very respectfully, your obedient servant,
  S. B. HOLABIRD, Quartermaster-Gen., U. S. A.

       *       *       *       *       *

FORT ABRAHAM LINCOLN, DAK.

  JOHN H. PAGE, Major 11th Infantry, U. S. A.

  United States Army, War Department,}
  FORT ABRAHAM LINCOLN, Dakota, Jan. 20, 1886.}

MR. J. JAROS, Chicago, Ill.

Sirs:--Your heavy wear I have named "Blizzard" Underwear, after
wearing a suit myself, with the mercury 27 degrees below zero, with a
twenty-mile wind, I was perfectly comfortable, and felt a warm glow
of the skin during the whole trip. My ambulance driver reports his
experience with the thermometer 35 degrees below zero, and in a heavy
gale, saying the drawers were much warmer than two pairs of very heavy
woolen drawers he had been wearing, and that he did not feel the cold
in the slightest degree. We found it washed as well as any woolen
goods, and did not shrink. I am fully convinced of the excellent
qualities of your goods, and find them doing good service. I will
request the other officers to report to you also.

  Very respectfully,
  JOHN H. PAGE, Maj. U. S. A.

       *       *       *       *       *

FORT MEADE, DAK.

  CAPT. F. M. MCDOUGALL, 7th Cavalry, U. S. A.

  FORT MEAD, DAK., Nov. 6, 1886.

MR. J. JAROS, Chicago, Ill.

Dear Sir:--The Fleece Underwear of your make is fulfilling every
expectation, and I am personally also deriving the benefits and
enjoying its wear.

  Respectfully,
  F. M. MCDOUGALL, Capt. U. S. A.

       *       *       *       *       *

OFFICE A. A. QUARTERMASTER.

  FORT YATES, DAK., 4, 12, 1887.

J. JAROS, Esq., Jaros Hygienic Underwear Co., Chicago, Ill.

Dear Sir:--I can assure you that I am only too happy to furnish you all
information you desire relative to your heavy underwear. I have been
in this country for several years and have tried all grades of heavy
fabric, never found any to meet my wants until I got your goods. Your
heavy underwear can in no way be surpassed. I have been out in the
hardest blizzards known in this country, with the wind at 29 miles,
and the mercury at 46 and 47 degrees below zero, but found myself
comfortable; felt a warm glow of the skin at all times, and I find it
washes as well as any ordinary woolen wear, and does not shrink. I am
fully convinced of the excellent qualities of your goods, and find that
a great many of my friends and others are _very_ anxious for winter to
come again so that they may order. As I find it a protection against
all diseases during the cold and damp seasons, having proven this last
winter, I will request many of my comrades to report to you also.

  I am, Sir, yours very respectfully,
  PETER BRILLING, U. S. A.

       *       *       *       *       *

U. S. NAVY, PAY INSPECTOR'S DEPARTMENT.

  U. S. Naval Academy,
  ANNAPOLIS, MD., Feb. 23, 1889.

Gentlemen:--I cannot refrain from expressing to you the great
satisfaction and enjoyment I have received from the use of your Jaros
Hygienic Underwear during the past winter. I have been almost free from
rheumatic pains, from which I have heretofore suffered greatly, and
also enjoyed an exception from severe colds, which is a very unusual
luxury with me in the winter season; all of which I must attribute to
the protection afforded by my Hygienics. I am also gratified to find
that with the proper care in washing there is no perceptible shrinkage.
In short, in every way, I find them the most desirable article I have
ever seen for the object to be attained.

I shall be so loth to part with them that I hope you will manufacture a
lighter grade for summer wear.

You are at liberty to make any use you may see fit of my testimony.

  Very truly yours,
  THOS. T. CASWELL,
  Pay Inspector U. S. Navy.

       *       *       *       *       *

  STREET RAILWAY COMPANIES.

  CHICAGO CITY RAILWAY CO.

  C. B. HOLMES, Pres't and Supt.,
  2020 State Street,
  CHICAGO, March 2, 1889.

Gentlemen:--The "Jaros Hygienic Underwear" has been in use with
Conductors and Gripmen of this Company since November 1885, having been
recommended by the Company's Surgeon, Dr. D. A. K. Steele. We speak
for the men in asserting that this underwear is considered the best
possible protection against cold and changeable temperatures, which are
especially characteristic of this latitude, and its use has resulted in
great protection of health and a corresponding increased efficiency.
With conductors, whose occupation necessarily prevents the wearing of a
very heavy overcoat, it is of great advantage, and gripmen and drivers
are enabled to thoroughly protect themselves in their exposed positions
without an overplus of clothing, otherwise necessary.

The proper protection of men serving in Street Railway Companies is
of the greatest importance; since an efficient service in trying
weather is largely dependent on their prompt response. We have been
pleased to secure for our employees a contract figure on the "Jaros
Hygienic Underwear," and feel that the benefits fully justify us in our
continuance of this arrangement.

  Respectively yours,
  C. B. HOLMES, Supt.

       *       *       *       *       *

 D. A. K. STEELE, M. D., Surgeon and Consulting Physician, Chicago City
 Railway Co., Ex-President Chicago Medical Society, Prof. Orthopedic
 Surgery, College of Physicians and Surgeons of Chicago, etc.

J. JAROS, Esq., Chicago.    CHICAGO, January 6, 1886.

My Dear Sir:--I have critically examined and practically tested the
"Jaros Hygienic Wear," and consider it the best fabric with which I am
acquainted, for retaining the animal heat, and preventing chilling of
the body by sudden changes of temperature. I consider the heavy wear
especially valuable for car drivers, firemen, policemen, or those whose
occupation expose them constantly to the inclemency of the weather.

Through my suggestion to the officials of the Cable Railway Company,
many of the Grip Drivers and Conductors are already using this wear
with the greatest satisfaction, lessening their risk of "taking cold,"
and bettering their HEALTH and EFFICIENCY.

  Very truly yours,
  D. A. K. STEELE, M. D.

       *       *       *       *       *

  WEST CHICAGO STREET RAILWAY CO.

  CHAS. F. NAGL, Superintendent.

  CHICAGO, March 4, 1889.

Gentlemen:--The good reports from Drivers and Conductors of our Company
who are wearing the "Jaros Hygienic Underwear," satisfies us that the
arrangements made for last season's delivery of the wear have been
appreciated.

The excellent protection under every change of temperature during the
winter months, guards against attacks so frequent with men exposed,
of rheumatism, kidney disease, and pulmonary troubles, and all
character of ailments resulting from colds. This is too often cause
for irregularities with men, which is a loss to them and often an
inconvenience to the Company.

We believe the underwear good, and just the thing for the purposes it
is advocated.

  Respectfully,
  CHAS. F. NAGL, Supt.

       *       *       *       *       *

  RAILROADS.--BROTHERHOOD FIREMEN.

F. P. SARGENT, Grand Master.

  Grand Lodge Locomotive Firemen of North America,}
                  TERRE HAUTE, IND., March 5, 1889.}

JAROS HYGIENIC UNDERWEAR CO., Chicago, Ill.

Gentlemen:--I take pleasure in recommending the Hygienic Underwear. I
have been wearing it constantly for the past two winters and I find it
not only conducive to comfort but to good health, and I recommend it
heartily to any one who desires to be free from chills and rheumatism
and to those who are exposed to sudden changes of climate. _Railroad_
men will not only find that the Jaros Underwear gives them comfort but
also good health.

  Yours truly,
  F. P. SARGENT.

       *       *       *       *       *

EUGENE V. DEBS, Grand Sec'y and Treas.

  Grand Lodge Brotherhood of Locomotive Firemen.}
  TERRE HAUTE, IND., Feb. 12, 1888.}

JAROS HYGIENIC UNDERWEAR CO., Chicago, Ill.

Gentlemen:--After two years' experience with your Hygienic Underwear
I take great pleasure in bearing testimony to its worth. It is all
you claim for it and I conceive it to be just what every railroad man
in the train service should be equipped with, if he has a prudent
appreciation of health and comfort.

  Yours very truly,
  EUGENE V. DEBS.

       *       *       *       *       *

  ILLINOIS CENTRAL RAILROAD COMPANY.

  Office of General Western Passenger Agent, }
  MANCHESTER, Iowa, October 6, 1888.}

JAROS HYGIENIC UNDERWEAR CO., Chicago.

Gentlemen:--I am not in the habit of giving testimonials, and as a rule
am opposed to anything of the kind, but after suffering from rheumatism
and kindred diseases for several winters, I was persuaded by a friend
to try Hygienic Underwear, and I am compelled to say that from the time
I began using them last November until spring I did not have a touch
nor a single chill during the entire winter, and I am confident that it
was attributable to the use of your Underwear, and I have not hesitated
to recommend them every opportunity.

  Yours truly,
  J. F. MERRY,
  Great Western Passenger Agent.

       *       *       *       *       *

J. F. MERRY, General Western Passenger Agent,
Illinois Central Railroad Company,

  Office of General Western Passenger Agent,}
  MANCHESTER, Iowa, May 7, 1887.}

J. JAROS, Esq.

My Dear Sir:--I have worn the "Jaros Hygienic Underwear" nearly six
months. Have not had a cold during the time, nor a sense of chilliness
even during the coldest weather. My Catarrh has scarcely troubled me
at all during the winter, and I would not be without these suits were
the cost ten times what it is. You are at liberty to say to railroad
men, and others exposed in extreme changes of climate, that they cannot
afford to be without the "Jaros Hygienic Underwear."

  Yours truly,
  J. F. MERRY.

Preceding this, Mr. Merry wrote a friend in Dubuque, dated

  _Manchester, Ia._, Dec. 1, 1886.

Going home yesterday to dinner, I found awaiting me a suit of
underwear, and I was not very long in putting myself inside of them,
but with no idea that I could wear them, having tried almost everything
that contained wool, but never having found a garment I could wear next
to my skin containing a particle of wool. I have worn the suit for
two days without an unpleasant sensation; on the contrary, they are
delightful, and just what I needed.

Please have the following order filled for me.

  Yours truly,
  J. F. MERRY.

       *       *       *       *       *

  RAILROADS.--OFFICIALS.

  MISSOURI PACIFIC RAILROAD CO.

W. R. OUTTEN, Chief Surgeon Missouri Pacific R. R. Co., Dean Beaumont
Hospital Medical College.

  ST. LOUIS, October, 1887.

Approved and recommended for use by the Engineers, Firemen and Brakemen
of the Missouri Pacific Railroad Co., by W. B. OUTTEN, M. D., to A. W.
DICKENSON, Esq., Superintendent.

       *       *       *       *       *

  BALTIMORE & OHIO RAILROAD CO.

R. HARVEY REED, M. D., Surgeon Chief, Baltimore & Ohio R. R. Co.,
Secretary State Sanitary Association, Ohio.

  MANSFIELD, O., March 9, 1889.

MR. J. JAROS, Chicago, Ill.

Dear Sir:--From personal experience I find your underwear the most
comfortable and the best safeguard from taking cold of anything of the
kind I have ever seen.

I have no hesitation whatever in heartily seconding it for Railroad
employees, Police and Fire Departments, as especially well suited for
their use, or any person exposed to the sudden changes of the weather
in our climate.

  Yours very truly,
  R. HARVEY REED, M. D.

       *       *       *       *       *

  REPORTS R. R. ENGINEERS, ETC.

  EXECUTIVE COMMITTEE, LEGISLATIVE BOARD.

  Brotherhood of Locomotive Engineers,
  MARSHALLTOWN, IOWA, April 9, 1889.

  J. S. MILLARD, Secretary.

JAROS HYGIENIC UNDERWEAR CO., Chicago, Ill.

Dear Sir:--I received your Bowel and Kidney Band, which I put on
promptly, and wore it until a few days ago. To say with flattering
results, would be putting it mild.

Away with electric belts, etc.; what we Locomotive Engineers want is
better, and the proper material in such protectors for our bowels,
kidneys and lungs, which are constantly exposed to improper currents of
air.

Since wearing your Bowel and Kidney Band I have had fewer colds and
aches than previously, through our severe Iowa winters. I cheerfully
recommend it to brother Engineers as filling a long felt want as a
restorative to weak backs, sore lungs, etc. With best wishes for your
success, I remain,

  Very respectfully yours,
  J. S. MILLARD.

       *       *       *       *       *

  THE WABASH & WESTERN RAILWAY CO.

  Office General Master Mechanic,
  MOBERLY, MO., April 13, 1889.

JAROS HYGIENIC UNDERWEAR CO., Chicago, Ill.

Dear Sir:--I find that your Kidney and Bowel Bands gave general
satisfaction to our men who have used them, and hand you enclosed
several testimonials. For myself I will say I am greatly pleased with
the result of wearing the Band. I find that I am not troubled with
a very annoying pain in side and back when wearing the Band. I like
it very much, and shall next winter provide myself with Bands and
Underwear of the same quality.

  Yours truly,
  A. W. QUACKENBUSH, General M. M.

       *       *       *       *       *

  WABASH & WESTERN RAILWAY CO.

  MOBERLY, MO., April 10, 1889.

  To A. W. QUACKENBUSH, General M. M.

Dear Sir:--Replying to your attached note, will say that I have been
wearing the Bowel Bands for the past three months, and I think they
have done me considerable good, and I can safely recommend them to
other Engineers having cause to use them.

  Yours truly,
  GEO. HAGER, Engineer.

       *       *       *       *       *

  WABASH & WESTERN RAILWAY CO.

  MOBERLY, MO., April 15, 1889.

  A. W. QUACKENBUSH, M. M.

Dear Sir:--In regard to the Bowel and Kidney Band I will say, I have
given it good use, and think it is doing me much good, as I have had no
trouble with my kidneys since wearing it.

  Yours respectfully,
  W. L. DUBOIS, Engineer.

       *       *       *       *       *

Many other reports confirm the above.

       *       *       *       *       *

  SURGEONS.

  SWITCHMEN'S MUTUAL AID ASSOCIATION, OF NORTH AMERICA.

  OFFICE OF THE GRAND LODGE,

E. P. MURDOCK, M.D., Grand Medical Examiner.

  CHICAGO, Ill., January 4th, 1890.

DR. I. JAROS.

I have very carefully examined and tested the "Jaros Hygienic Wear,"
and I find it the best hygienic wear manufactured. It is so constructed
as to conduct the moisture away from the body, thus retaining even
temperature, and preventing chilling of the surface by sudden changes.

The heavy will be especially adapted to switchmen and other railway
employees who are greatly exposed to the weather where cumbersome
overclothing is not only undesirable, but positively dangerous, as such
heavy outside garments impede their movements, and thus place them in
danger of accidents.

I especially recommend this wear to railway employees as a means of
comfort, safety and health.

  Very truly,
  E. P. MURDOCK,
  Grand Medical Examiner,
  Switchmen's Association.

       *       *       *       *       *

  PAUL BOYTON, World Famed Swimmer.

  634 Cleveland Avenue,
  CHICAGO, April 3, 1890.

DEAR SIR:--You are acquainted with the history of my accidently
learning of your underwear, and know the many doubts I had while
purchasing. I have given the garments the severest tests possible to
satisfy myself whether the goods were really what I so much needed, and
would hold out in the claims you made.

I have bought the best woolen and heaviest silk underwear in prominent
cities where I have travelled, abroad as well as in this country, with
the special view of getting something that would protect me while in my
rubber dress, on the long, cold and damp voyages I make. The exercise
and heavy rubber suit which I wear often cause active perspiration,
and my observation has been that from one to one and a half pounds of
moisture is thrown off during an exhibition lasting from one and a half
to two hours. With all other kind of underwear, this moisture was taken
up only partially, the garments becoming thoroughly wet, and causing a
chilling which was always hard for me to overcome; in fact, after these
aquatic exhibitions, I found it absolutely necessary to be well rubbed
to draw the blood to the surface and produce reaction, to prevent
trouble.

I speak of other underwear to give you an idea of this action, and the
difference in the body under trying conditions.

Your wool I found admirably selected and prepared, and so incorporated
to act quickly and absorb the moisture thrown off.

My experience is that the "_Jaros Hygienic Underwear_" does not only
relieve the body of perspiration, but also carries it to the cotton
framework outside, which thoroughly retains it, thereby keeping the
wool inside perfectly dry.

Since I began to use the underwear, I have never felt the chilling
which had always affected me with other underclothing, and I do not
find rubbing after an exhibition necessary.

I have no trace of rheumatic pain, and I feel physically much better.
The difference in the amount of perspiration seems to me marked, which
I attribute to the fact that the body temperature remains more nearly
the same. I am so well pleased with your underwear, that I use it for
general wear as well, and find every point you have claimed to be
realized in its use. In conclusion, I can say, that your underwear is a
boon and blessing to men exposed as sailors, firemen, soldiers, and as
well as the general public. Wishing you the success you deserve,

  I remain, yours very respectfully,
  PAUL BOYTON.

       *       *       *       *       *

We refer with permission to the following chiefs of Fire Departments,
who use and recommend this wear for its value in Department service:

  Chief Hughes    Fire Dep't, Louisville, Ky.
    "  Lemoine        "       Grand Rapids, Mich.
    "  Evans          "       Pittsburgh, Pa.
    "  Stettson       "       Minneapolis, Minn.
    "  Fowley         "       Milwaukee, Wis.
    "  Lindsay        "       St. Louis, Mo.
    "  Bentley        "       Eaton Rapids, Mich.
    "  Kiersted       "       Newark, N. J.

Etc., Etc., Etc.

       *       *       *       *       *

  R. R. SURGEONS.

The following Surgeons have recommended the "Jaros Hygienic Wear" to
the employees.

 DR. J. W. JACKSON, Kansas City, Mo., Chief Surgeon. Wabash & Western
 R. R. Co.

 DR. R. HARVEY REED, Mansfield, O., Chief Surgeon. Baltimore & Ohio R.
 R. Co.

 DR. W. B. OUTEN, St. Louis, Mo., Chief Surgeon. Missouri Pacific R. R.
 Co.

 DR. J. H. MURPHY, St. Paul, Minn., Chief Surgeon. Northern Pacific R.
 R. Co.

 DR. W. R. NUGENT, Oskaloosa, Ia., Chief Surgeon. Central Iowa R. R. Co.

 DR. J. W. SANDERS, Broken Bow, Neb., Chief Surgeon. Chicago,
 Burlington & Quincy R. R. Co.

And others.

       *       *       *       *       *

Transcriber's Notes

  Typographical errors have been silently corrected and hyphenation
  standardised.

  Variations in spelling and punctuation are as in the original.

  The author has used hydroscopic in place of hygroscopic throughout.
  On page 27 qualitive replaced by qualitative.

  In the testimonial on page 37 beginning "I am much impressed with
  (the value) of", the words in brackets are illegible in the original.
  The correction is taken from the same testimonial on page 12.

  The layouts of the terminal salutations in the testimonials are highly
  varied in the original. They have been standardised.

  In the testimonials section, the author used page headings to
  describe the source of the testimonials on the page
  (i.e.  R. R. SURGEONS.). These headings have been placed at the
  beginning of each set of testimonials.

  The original volume has no table of contents. This has been added.

  Italics are represented thus, _italic_.





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