Mitchill taught chemistry, botany, and natural history at
Columbia College from 1792 to 1801 and was a founding editor of
The Medical Repository, the first medical journal in the United States. In 1793, he was elected a Foreign Fellow of the
Royal Society of Edinburgh. His proposers were
James Gregory,
Dugald Stewart, and
John Rotherham. In addition to his Columbia lectures on botany, zoology, and mineralogy, Mitchill collected, identified, and classified many plants and animals, particularly aquatic organisms. He was elected a Fellow of the
American Academy of Arts and Sciences in 1797. From 1807 to 1826, he taught at the
College of Physicians and Surgeons of New York and then helped organize the short-lived Rutgers Medical College of New Jersey, for which he served as vice president until 1830. While at Columbia, Mitchill developed a fallacious theory of disease, but it resulted in his promotion of personal hygiene and improved sanitation. Mitchill served in the
New York State Assembly in 1791 and again in 1798 and was then elected as a
Democratic-Republican to the
United States House of Representatives, serving from 1801 until his resignation on November 22, 1804. In
November 1804, Mitchill was elected a
U.S. Senator from New York to fill the vacancy caused by the resignation of
John Armstrong, and served from November 23, 1804, to March 4, 1809. He then served again in the House of Representatives from December 4, 1810, to March 4, 1813. Mitchill was elected a member of the American Antiquarian Society in 1814. On January 29, 1817, Mitchill convened the first meeting of the
New York Academy of Sciences, originally called the Lyceum of Natural History, of which he was later elected president. Mitchill strongly endorsed the building of the
Erie Canal, sponsored by his friend and political ally
DeWitt Clinton; they were both members of the short-lived New-York Institution. Mitchill suggested renaming the United States of America to
Fredonia, combining the English "freedom" with a Latinate ending. Although the suggestion was not seriously considered, some towns adopted the name, including
Fredonia, New York. Some
freebooters established a
short-lived republic under that name in
Texas in the late 1820s. The earliest recorded argument in its favor is found in a
broadside, printed probably in 1803, with the title
Generic Names for the Country and People of the United States of America. The text refers to its “authors” who “are citizens of the United States, and are zealous for their prosperity, honour, and reputation. They wish them to possess a name among the nations of the earth. They lament that hitherto and at present the country is destitute of one.” The piece is signed, and some of the phrases used match those in later writings known to be Mitchill’s, so this 1803 broadside is also ascribed to him. It is impossible to tell if there really was a group for whom Mitchill was writing, or if that was merely a pious fiction. ==Personality==