DB. R. D'E. ATKINSON has been appointed chief assistant in the Royal Observatory, Greenwich. Dr. Atkinson obtained a first class in the Physics Final Honour School in Oxford in 1922 and was elected to a research fellowship at Hertford College. In 1926 he obtained a Rockefeller travelling fellowship and studied in Gottingen for two years under Prof. Franck, taking the D.Phil, degree. After a short period as demonstrator in the physics laboratory of the Technische Hochschule in Berlin-Charlottenburg, he was appointed assistant professor and, in 1933, associate professor of physics in the Rutgers University, New Brunswick. Dr. Atkinson has published many papers. Of particular interest is his work on atomic synthesis and the source of stellar energy, in the course of which he deduced, before the discovery of the neutron, from general considerations of atomic abundance in the sun and stars, that there must be some type of particle that could penetrate a highly charged nucleus more easily than a proton.