DR. A. R. TODD, who has been appointed Sir Samuel Hall professor of chemistry and director of the Chemical Laboratories in the University of Manchester (see p. 1153), graduated in 1928 with first-class honours in chemistry in the University of Glasgow, where he won the Black Medal, the Roger Muirhead Prize and the Alexander Donaldson Scholarship. From 1928 until 1931 he was a Carnegie Research Scholar, working first at Glasgow under Prof. T. S. Patterson and later in Frankfort-on-Main under Prof. Borsche. Afterwards, as 1851 Exhibition Student, he worked for three years under Prof. R. Robinson at Oxford. In 1934 he became assistant to Prof. G. Barger in Edinburgh, where he held a Beit Memorial Medical Research Fellowship. In 1936 he was awarded the Meldola Medal, and in the same year he joined the Lister Institute as assistant in the biochemical department. Dr. Todd has published some thirty papers in chemical journals dealing with work on rotatory dispersion and the Walden inversion, the structure of bile acids, anthocyanin pigments, the chemistry of vitamins Bx and E and other biochemical subjects. He enters on his new appointment at the end of September of this year.