Date accepted by Academy of Medicine: 1934; photo taken in commemoration of a British Association for the Advancement of Science meeting at Liverpool in 1923; included in the photograph are: F.G. Donnan, G.H.F. Nuttall, C. Crowther, F.W. Aston, J.C. McClennan, Sir Ernest Rutherford, G. Elliot Smith, A.G. Tansley, Vaughn Cornish, P.E. Newberry, and H.J. Ashworth; taken from the magazine "The Sphere," Sept. 15, 1923.