This reprint from the Oxford Monographs on the diagnosis and treatment of pneumonia is a valuable compendium of the literature and contains chapters on the history, incidence and etiology, infection and immunity, morbid anatomy, symptomatology, physical signs, complications, clinical types and diagnosis, prognosis, prophylaxis and treatment of lobar pneumonia. There is a chapter on bronchopneumonia and one on the common cold. The latter contains some of the more recent work on the virus. The bibliography is excellent. A survey of our present knowledge of pneumonia may be found in this volume.