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 woman in her first labour of a male child, the bowels of a mole cut open alive, and the mummy made of the lungs of a man who had died a violent death." But such remedies were common to all practitioners in England and France at the time. The principal ingredient in a gout powder which he composed was the raspings of an unburied human skull. He devised an ointment for hypochondria which was called the Balsam of Bats. It contained adders, bats, sucking whelps, earthworms, hog's grease, marrow of a stag, and the thigh bone of an ox. On the other hand, Mayerne is credited with the introduction of calomel and black wash into medical practice.

Jean Baptiste Van Helmont, born at Brussels in 1577, and died at Vilvorde near that city in 1644, was an erratic genius whose writings and experiments sometimes astonish us by their lucidity and insight, and again baffle us by their mysticism and puerility.

Van Helmont was of aristocratic Flemish descent, and possessed some wealth. He was a voracious student and a brilliant lecturer. At the University of Louvain, however, where he spent several years, he refused to take any degree because he believed that such academic distinctions only ministered to pride. He resolved at the same time to devote his life to the service of the poor, and with this in view he made over his property to his sister, and set himself to study medicine. His gift of exposition was so great that the authorities of the University insisted on his acceptance of the chair of Surgery, though that was the branch of medical practice he knew least about, and though it was contrary to the