No subject in medicine has been in a greater state of confusion than the "toxemias of pregnancy," encrusted by traditions often of almost medieval antiquity and studied for the most part by men not trained in the proper methods. Real light seems now to have come from the careful studies of Dexter and Weiss. Here, for the first time, the reviewer finds a really intelligible and satisfying account of these puzzling disorders, made possible mainly by the training of the authors in vascular and renal disease. Clinical features, pathophysiologic aspects and anatomic lesions are all correlated, and each chapter is followed by liberal bibliography. Useful charts illustrate the case reports.