A Textbook of Clinical Periodontia. A Study of the Causes and Pathology of Periodontal Disease and a Consideration of Its Treatment.

This book consists of six parts, on relation to the basic sciences, the causes of periodontoclasia, the therapeutics of periodontia, the diagnosis of periodontal disease, types of periodontoclasia, and technical procedures. Though one may not feel ready to accept all its teachings, the authors must be given credit for much thought, study and originality in its production. The writers do not assume credit for all of the new nomenclature proposed, giving credit in the greater part for this to a committee on nomenclature composed of members of the American Academy of Periodontology. Many new words have been coined to supplant certain ones in common use. The terms pyorrhea alveolaris and Riggs' disease have never been satisfactory to the student, and efforts have been made by writers to better the nomenclature of pericemental diseases; but as yet none has been entirely accepted by the profession at large. We may be pardoned