Thomas Say
Who was Thomas Say?
American naturalist (1787-1834)
Biographical data adapted from Wikipedia’s article on Thomas Say (CC BY-SA 4.0).
Biography
Thomas Say was born on June 27, 1787, in Philadelphia, Pennsylvania, into a well-known Quaker family. His father, Benjamin Say, worked as a physician and apothecary, while his grandfather was a judge. Despite a comfortable upbringing, Say was passionate about natural history from an early age, which shaped his career. After finishing his basic education, he initially worked in the family apothecary, but his interest soon shifted to studying insects, shells, and other natural specimens.
In 1812, Say helped found the Academy of Natural Sciences of Philadelphia, serving as librarian and later curator. This role gave him access to scientific collections and connections with other naturalists. Say's skills in studying insects and shells gained attention, leading to his election to the American Philosophical Society in 1817. His methodical work in classifying American species addressed crucial gaps in understanding North American wildlife.
Say took part in several important scientific expeditions that expanded knowledge of American natural history. He joined Stephen Harriman Long's expedition to the Rocky Mountains in 1819-1820, where he discovered many new species of insects and mollusks. His fieldwork also included trips to Florida, Georgia, and Mexico, often in tough conditions. These expeditions contributed to his many publications in scientific journals and established him as a top authority on American invertebrates.
In 1825, Say made a significant life change by joining the utopian community of New Harmony, Indiana, founded by Robert Owen. There, he married Lucy Way Sistare, an artist who illustrated many of his scientific works. At New Harmony, Say continued his research while also holding a remote position as professor of natural history at the University of Pennsylvania. During this time, he produced major works like 'American Entomology' and 'American Conchology,' which documented hundreds of species new to science. Say passed away on October 10, 1834, at New Harmony, solidifying his reputation as the leading American naturalist of his time.
Before Fame
Say's path to scientific fame was heavily influenced by the intellectual scene of early 19th-century Philadelphia, which was becoming a hub of American scientific activity. Growing up Quaker, he learned the importance of careful observation and systematic thinking, which helped him in his natural history studies. The Academy of Natural Sciences of Philadelphia was founded in 1812, providing young American naturalists like Say with their first real place for serious scientific work.
During the early 1800s, American natural history was mostly unexplored, with most scientific knowledge coming from Europe. This gap gave dedicated researchers a chance to make original contributions by studying native American species. Say saw this opportunity and focused on collecting and describing insects and shells, fields where American specimens hadn't been studied as much as European ones.
Key Achievements
- Founded the Academy of Natural Sciences of Philadelphia in 1812
- Described over 1,500 new species of insects and mollusks
- Published 'American Entomology' (1824-1828) and 'American Conchology' (1830-1834)
- Participated in the Long Expedition to the Rocky Mountains (1819-1820)
- Established the foundation of American descriptive entomology and conchology
Did You Know?
- 01.Say described over 1,500 new species of insects and mollusks during his career, many of which retain his original names today
- 02.His wife Lucy Say was the first woman elected to membership in the Academy of Natural Sciences of Philadelphia, largely due to her scientific illustrations of her husband's specimens
- 03.Say's cicada (Magicicada septendecim) was one of his most famous discoveries, and he was among the first to document its 17-year life cycle
- 04.He lived in a communal dormitory at New Harmony and often worked by candlelight, as the utopian community had limited resources for scientific equipment
- 05.Say never traveled to Europe, making all his scientific contributions based on American fieldwork and collections