Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to the Secretary, The British Empire Cancer Campaign, 19 Berkley Street, W.1 Informs the Secretary of the British Empire Cancer Campaign that the Royal Society and the Medical Research Council have appointed Dr. Major Greenwood and Dr. [James Alexander] Murray, FRS to replace [Henry Hallett] Dale and Prof. [Charles James] Martin on the Scientific Advisory Committee. 15 April 1926