1702 · Caribbeanyear only
Mead explains poison as salts that cut the stomach like knives
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Richard Mead published A Mechanical Account of Poisons in 1702 and revised it in 1729 and 1747. Looking at dried viper venom through a microscope he saw jagged crystals, and concluded that all poisons were salts working by cutting the stomach like sharp knives. He gave an essay to the Italian tarantula, whose bite was said to bring on a delirium curable only by vigorous dancing, and explained the cure through sweat and through vibrations in the air breaking up coagulated blood. Mead never left Europe. He was physician to George II and a fellow of the Royal Society, and each new edition leaned harder on people who had been elsewhere: a treatise on the Mexican tarantula, a Portuguese merchant's report that Kongolese people ate vipers to cure disease, an account of poisoned arrows near Cape Town, and letters from surgeons living in Guinea and Virginia. European knowledge of poison was assembled from African and American material.