The author has attempted the tremendous task of giving a complete review of blackwater fever from its first recognition as a distinct condition until the present. The mass of literature would make this difficult, but in addition the task is all the more complicated by the lack of any true understanding of the etiology of the disease and the consequent lack of rational and controlled observations relating to its causation and cure. The main part of the book is divided into twelve chapters, of which four are concerned with etiology and the remaining with synonymy, geographic distribution, history, symptoms, treatment, prognosis, prophylaxis, blood, urine and feces, and pathology. Under each chapter the author has collected collated brief excerpts and concise reviews of all available literature, arranged for the most part in chronological sequence. The author points out that many data are of unequal value, but he has refrained from expressing