This is one of the series of books promoted by the New York Academy of Medicine and containing lay lectures on medical subjects. These books are most interesting and valuable from a historical point of view and in addition make delighful reading. It is difficult to place one lecture above another in interest and value, but it is worth a wager that the majority of readers will turn first to Martland's "Dr. Watson and Mr. Holmes." Other contributors are Francis R. Packard, Alfred E. Cohn, James J. Walsh, Raymond Pearl, Reginald Burbank and Lewis Gregory Cole.