No coin nor oath required. For personal study only.
Richardson Young on the chemistry of digestion. Young was tyorn at Hagerstown, Maryland, about 1782, was educated in arts at the College of New Jersey, now Princeton University, from which he graduated in 1799 , and in medicine at the University of Pennsylvania, from which, he graduated as a Doctor of Medicine in 18o 3. His doctoral thesis was entitled " An Experimental Inquiry into the Principles of Nutrition and the Digestive Processes." Among his teachers were Benjamin Rush and James Woodhouse. His research was made on laboratory animals, such as frogs, snakes, and lizards, and on human beings. Study was made of the processes of digestion in the stomach of the common large bull-frog, removing the gastric contents for observation at intervals of time. Digestion in the human stomach was studied by examination of gastric contents regurgitated a definite time after ingestion of a test meal. He also obtained pure gastric juice, and studied its action on substrates in 2,itro. Young recognized the presence of an acid in the gastric secretion. but erroneously thought it to be phosphoric acid; he also demonstrated that acid gastric juice prevented putrefaction. This pioneer American physiological chemist died at Hagerstown on June 8, 18o4, in the twenty-second year of his age.
J.S.H.
๐ SIMILAR VOLUMES
African Association has established a depot at Zanzibar
Electric Tra~tsmissio~ ~f \_Power