Group Photograph of the London School of Tropical Medicine, 12th Session- J. W. Barrack Back Row, 5th from Left. Also Sir Patrick Manson, Dr. Sambon, G. D. Warren, H. G. Ellery and J. Donald, H. E. Garrett, Mrs. Joyce, Mr. K. W. Goadby, C. J. Gomes, J. Halley, A. E. Ireland, Sir Francis Lovell, Dr. G. C. Low, J. Macintosh, A. D. Thomson, Mckean, H. Macfarlane, W. Thomson, G. R. Twomey, P. H. Ross, G. C. Strathern, Miss Scott, Professor and Mrs. Salmonsen, Miss Soltau, Miss Sibree, Dr. Ross, Robert (Lab Assistant)