Article Conchology by Thomas Say, published in Nicholson's Encyclopedia, 3d edition, Philadelphia, 1819. [1819?]
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Say, Thomas, 1787-1834
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Thomas Say (1787-1834) was a naturalist, entomologist, conchologist and explorer. The son of physician-apothecary Bejamin Say and his wife Ann Bonsall, granddaughter of the botanist John Bartram (1699-1777), Say was born in Philadelphia, Pennsylvania on June 27, 1787. His mother died when he was six. Say’s connections with his great-uncle naturalist William Bartram (1739-1823), Bartram’s friend and neighbor the ornithologist Alexander Wilson (1766-1813) and Charles Wilson Peale (17...
Nicholson, William, 1753-1815
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