The Etiology of Osseous Deformities of the Head, Face, Jaws, and Teeth. By Eugene S. Talbot, M.D., D.D.S. Chicago: Keener Co. 1894. Pp. 487.

to necessitate the publication of an enlarged revised third edition. The result is the appearance of a volume of 500 large pages, with about as many illustrations elucidating the text. The earlier editions were written to counteract the theory that irregularities of the teeth and jaws were the result of local, not constitutional, conditions, and the increasing volume of evidence against this theory has forced the author to extend the scope of his original inquiry into departments of oral and nasal medicine, and surgery of the eye, ear, and face,