Josiah C. Nott

Josiah Clark Nott (March 31, 1804March 31, 1873) was an American surgeon, anthropologist and ethnologist. He is known for his studies into the etiology of yellow fever and malaria, including the theory that they are caused by germs, and for his espousal of scientific racism.

Nott, who owned slaves, used his scientific reputation to defend the institution of slavery. He claimed that "the negro achieves his greatest perfection, physical and moral, and also greatest longevity, in a state of slavery". Nott was influenced by the racial theories of Samuel George Morton (1799–1851), one of the inspirators of physical anthropology. Morton collected hundreds of human skulls from around the world and tried to classify them. Morton had been among the first to claim that he could judge the intellectual capacity of a race by the cranial capacity (the measure of the volume of the interior of the skull). A large skull meant a large brain and high intellectual capacity, and a small skull indicated a small brain and decreased intellectual capacity. By studying these skulls he came to the conclusion of polygenism, that each race had a separate origin. Provided by Wikipedia