Wilhelm Siegmund Feldberg (19 November 1900 – 23 October 1993) was a German-British physiologist and biologist. Biography Feldberg was born in Hamburg to a wealthy middle class Jewish family. He studied medicine at Heidelberg, Munich and Berlin, graduating in 1925. In the same year he moved with his new wife to England and studied first under John Newport Langley at Cambridge and then Henry Dale at Hampstead. In 1927 he returned to the Physiological Institute in Berlin but he was dismissed in 1933 during the Nazi purge of Jewish scientists. With the aid of Archibald Hill's Academic Assistance Council, Feldberg was relocated to Britain's National Institute for Medical Research in 1934–36. Here, he worked with Henry Hallett Dale, providing a significant impetus for Dale's Nobel Prize winning research into chemical neurotransmission. Feldberg was subsequently offered a place in Australia, at the behest of Charles Kellaway, director of the Walter and Eliza Hall Institute of Medical Research. He spent two years (1936–38) in Melbourne, joining Kellaway's snake venom research programme. This work developed into a study of tissue responses to direct and indirect insult, focusing particularly on the liberation of histamine and other endogenous mediators. A finding of lasting pharmacological interest from these studies was the identification and partial isolation of the slow-reacting substance of anaphylaxis. Although Feldberg had earned a fellowship supported by the Australian National Health and Medical Research Council, in 1938 he was offered a readership in physiology at Cambridge University. He returned to England to take up this post, remaining there throughout World War II until 1949. Feldberg's subsequent appointments include: Head of Physiology and Pharmacology Division, National Institute for Medical Research, London, 1949–65 (Honorary Head of Division, 1965–66); Head, Laboratory of Neuropharmacology, National Institute for Medical Research, 1966–74. He was elected a Fellow of the Royal Society in 1947 and made a Commander of the Order of the British Empire in 1963. Wilhelm Feldberg assisted many research workers who came to England as a part of their Commonwealth Medical Fellowship and Wellcome Research Fellowship. Under this Fellowships, Professor PN Saxena and Prof. KP Gupta of the Department of Pharmacology, Jawaharlal Nehru Medical College, Aligarh Muslim University, during the 1970s got many papers published together with Wilhelm Feldberg while their vocation at National Institute for Medical Research, Mill Hill. Controversy Feldberg's career was ended in 1990 when two animal rights activists gained access to his lab on