This book is written primarily to acquaint the general practitioner and surgeon with the many changes which in recent years have occurred in the diagnosis and treatment of thoracic disease; changes which have been so rapid that textbooks of a few years ago are now obsolete and so extensive and technical that thoracic surgery as a specialty has acquired great prominence. The author, however, believes that many of the disorders of the chest may safely remain in the hands of the well informed practitioner and general surgeon, while the highly technical operations on the lungs, thoracic wall, heart and other parts require special training and experience. The abnormalities of the thoracic cage and open and closed wounds, including those of war, are considered, with discussion of vital capacity, mediastinal flutter, paradoxical respiration and blast injury. Besides a description of the various diseases of the pleurae, lungs, heart, esophagus and great