The author has adopted a novel way of presenting the subject of roentgenology in dentistry. This is done by a series of questions and answers, and it is evident that he has thoroughly covered the subject. The book is adapted to both graduates and undergraduates. It is also of value to physicians as well as to dentists, particularly those concerned with focal infections of the dental structures. The various questions and answers are brief, and therefore are devoid of the verbosity found in many technical books; yet the subject is really gone into with considerable detail. The illustrations are clear cut and decidedly illuminating. The book will be a valuable addition to roentgen-ray literature, as have this author's previous contributions on the subject of dental roentgenology.