This book is by teachers of dentistry, intended for practicing dentists and for radiologists or other physicians interested in dental roentgenology. The pages on technic call for clarification and condensation and chapter II, on electricity and roentgenology, merits no serious consideration by readers; but the bulk of the work, which deals with diagnosis, is excellent and is recommended without reservation to physicians desirous of improving and modernizing their ability to interpret dental roentgenograms. The anatomy of the teeth and jaws at all ages from fetal to adult life is described, and certain concepts of development that have become established among orthodontists are convincingly disputed. Periapical lesions, unerupted teeth, salivary duct stones and infections, tumors and injuries of the jaws are well described and illustrated. In addition to these familiar subjects there are discussed many others not so well known to physicians, such as growth phenomena, dental caries and periodontal disease.