LIEUT.-COLONEL B. G. MAEGRAITH, who is at present in charge of the Army Malaria Research Unit, has succeeded, at the age of thirty-seven, the late Prof. Warrington Yorke in the Alfred Jones chair of tropical medicine at the Liverpool School of Tropical Medicine. After graduating at the University of Adelaide in 1930, Prof. Maegraith went to Oxford as a Rhodes Scholar and there took his B.Sc, D.Phil, and M.A. He was awarded a Beit Fellowship and became fellow of Exeter College and tutor in physiology. Later, he acted as dean of the Oxford University Medical School. Earlier in the War he served as consulting physician and assistant director of pathology in the West African Command and there studied, with Brigadier G. M. Findlay and N. H. Martin, the factors present in tissues and blood which may produce or inhibit lysis of the blood cells. In Australia, Prof. Maegraith had made a hæmatological study of the aborigines, and later he studied hæmolysis.