Dale, Sir Henry Hallett, 1875–1968, English scientist. For his study of acetylcholine as agent in the chemical transmission of nerve impulses he shared with Otto Loewi the 1936 Nobel Prize in Physiology or Medicine. He also investigated the pharmacology of ergot and histamine shock. He was director of the National Institute for Medical Research (1928–42), professor of chemistry and director of the Davy-Faraday Laboratory at the Royal Institution (1942–46), and president of the Royal Society (1940–45) and of the British Association for the Advancement of Science (1947). In 1932 he was knighted. His writings include Adventures in Physiology (1953) and Autumn Gleanings (1954).