Occasional Thoughts in Reference to a Vertuous or Christian life
Occasional Poems
Occasional Papers
Observations Upon the Windward Coast of Africa
Observations on the Terataspis grandis, Hall, the largest known trilobite
Observations on the Sermons of Elias Hicks
Observations on the Present State of the Affairs of the River Plate
Observations on the Oleum Jecoris Aselli, or Cod-liver Oil
Observations on the Mussulmauns of India
Observations on the Mississippi Kite in Southwestern Kansas
Observations on the Disturbances in the Madras Army in 1809
Observations on Mount Vesuvius, Mount Etna, and Other Volcanos
Observations on Madness and Melancholy
Observations on Insanity
Observations on Abortion
Observations of a Retired Veteran