This scholarly monograph from the State Hospital and from the Charity Hospital, Copenhagen, deals with traumatic fractures of the lower jaw and is based on the author's personal experience with 104 cases. A short historical review is followed by chapters on statistics and etiology, anatomic characteristics, roentgen examination, symptoms and diagnosis, complications, diagnosis, methods of treatment, and methods used by the author. There follow a schematic table of the author's cases and twenty-three pages of illustrations, consisting of roentgenographic reproductions, drawings and photographs of types of lesions and of apparatus and appliances used in treatment. A hundred pages is given over to detailed case histories, subdivided according to anatomic types of fractures. A selected list of references is appended. The monograph constitutes a valuable contribution to the subject of traumatic fractures of the lower jaw and its treatment.