Gerard Troost (March 5, 1776 - August 14, 1850) was an American-Dutch medical doctor, naturalist, mineralogist, and founding member and first president of the Philadelphia Academy of Natural Sciences.
2 Work and legacy,
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Troost was born Den Bosch, Netherlands, to Anna Cornelia (Van Heeck) and Everhard Joseph Troost. He received the degree of Doctor of Medicine from the University of Leyden, and of Master in Pharmacy, in 1801, from the University of Amsterdam. After a brief practice in at Amsterdam and the Hague, he was enlisted in the army as a private soldier, and then as an officer of the first class in the medical department. During these periods of service he was wounded in the thigh and in the head.
In 1807 Troost went to Paris, under the patronage of Louis Napoleon, King of Holland. There he studied at the School of Mines with renown mineralogist René Just Haüy. While in Paris, he translated into the Dutch language one of the earlier works of Alexander von Humboldt, The Aspects of Nature. This service brought him the cordial thanks of the author, with whom he maintained a friendly correspondence to the last.
In 1825 he joined the New Harmony experiment, in New Harmony, Indiana, with Thomas Say. In 1827 he moved to Nashville, Tennessee, where he became a professor of mineralogy and chemistry at the University of Nashville. From 1831 until 1850 he served as the State Geologist of Tennessee. While there he sent animal specimens to John Edwards Holbrook. His most enduring contribution to science was his method of doing geological surveys, which was carried on by David Dale Owen, son of Robert Owen, who went on to do several surveys of the American northwest.
Work and legacy:
Troost is credited with describing new species, such as the Western Cottonmouth (Agkistrodon piscivorus leucostoma) and is honored by having a subspecies of turtle named after him, the Cumberland Turtle (Trachemys scripta troostii). The reddish-colored crystals of a variety willemite found in New Jersey are known as troostite.
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