Born in Philadelphia into a prominent Quaker family, Thomas Say was the great-grandson of John Bartram, and the great-nephew of مزید دیکھیں

Say trained to be an apothecary. A self-taught naturalist, Say helped found the Academy of Natural Sciences of Philadelphia (ANSP) … مزید دیکھیں

• Say, T. 1817. Description of seven species of American fresh water and land shells, not noticed in the systems. Part 1. Journal of the Academy of Natural Sciences of … مزید دیکھیں

• Calhoun, John V. (2017). Thomas Say's Hipparchia andromacha: a duplicate illustration of a southeastern butterfly. Southern Lepidopterists' News. 39(4): 163–171.
• Le Conte, John, ed. (1859). Complete Writings of Thomas … مزید دیکھیں

Say described more than 1,000 new species of beetles, more than 400 species of insects of other orders, and seven well-known species of snakes.
Other zoologists … مزید دیکھیں

Frederick Valentine Melsheimer, also considered the "Father of Entomology" مزید دیکھیں

• Works by Thomas Say at Project Gutenberg
• Thomas Say (1787–1834), father of American entomology, University of Evansville مزید دیکھیں