Scientific American Supplement, No. 799, April 25, 1891
Scientific American Supplement, No. 795, March 28, 1891
Scientific American Supplement, No. 794, March 21, 1891
Scientific American Supplement, No. 787, January 31, 1891
Scientific American Supplement, No. 717, September 28, 1889
Scientific American Supplement, No. 711, August 17, 1889
Scientific American Supplement, No. 664, September 22,1888
Scientific American Supplement, No. 648, June 2, 1888.
Scientific American Supplement, No. 647, May 26, 1888
Scientific American Supplement, No. 643, April 28, 1888
Scientific American Supplement, No. 633, February 18, 1888
Scientific American Supplement, No. 623, December 10, 1887
Scientific American Supplement, No. 620, November 19,1887
Scientific American Supplement, No. 613, October 1, 1887
Scientific American Supplement, No. 611, September 17, 1887
Scientific American Supplement, No. 601, July 9, 1887