Best, IVI.A., IV!.D., D.Sc. (Lond.), F.R.S., F.R.C.P. (Canada), and W. B. Taylor, 1V1.D., F.R.S. (Canada), F.R.C.S. (Edin.), F.R.C.P. (Canada), M.R.C.S. (Eng.), L.R.C.P. (Lond.). Second Edition. 1939. Baiiliere, Tindall and Cox, London. Pp. xvi plus 1872. Illustrated. Price, 55s. The fact that this book, which was first published in 1937, was reprinted four times is in itself a sufficient proof...