GROUP CAPTAIN A. C. MENZIES has been appointed controller of research and development to the firm of Adam Hilger, Ltd., and commenced his duties on November 14, succeeding Mr. F. Twyman in this capacity. Mr. Twyman continues with the firm as managing director and technical adviser. Dr. Menzies saw active service in the War of 1914-18 as a seaplane pilot in the Royal Naval Air Service, and after graduating from Cambridge had appointments in physics at the University of Leeds, University College, Leicester, and University College, Southampton. At Leicester he inaugurated the Physics Department in the newly formed College, and at Southampton he held the chair. In December 1944 he was appointed to the chair of physics at University College, Swansea, the appointment to take effect after demobilization; but by the courtesy of the College was released from this and enabled to join Adam Hilger, Ltd., where his specialist knowledge and administrative experience will be of particular value. During the War he was in charge of operational research at the Air Ministry and was deputy director of science and deputy scientific adviser; and, since December 1944, when Sir George Thomson retired from the post, he has been acting as scientific adviser, pending a peace-time appointment. He has specialized in spectroscopy, first in atomic spectra, later in the Raman effect.