By the death of Dr. Florence Buchanan on Mar. 13, a familiar figure is removed from the laboratories at Oxford. For the past ten years she had been handicapped by increasing blindness; but even so, occasional articles have appeared from her pen. Previously she had carried out many interesting studies in the fields of zoology and physiology. Her earliest papers, on the respiratory organs of decapods and on annelids, appeared in the Quarterly Journal of Microscopical Science while she was still a student at University College, London, and there the influence of Sir Ray Lankester turned her attention to zoological studies, particularly of the polychsets. Later, with Sir John Burdon Sander-son at Oxford, she turned to physiological experiments upon the electrical response of muscle, recorded photographically by a capillary electrometer, and as a result of her investigations she was awarded several prizes, received the degree of D.Sc. from the University of London, and was made a fellow of University College.