The number of editions this short English textbook has gone through suggests that it is a useful book to at least some members of the medical profession. As the title indicates, it is a synopsis of laboratory examinations in clinical medicine. A chapter is devoted to each subdivision (e. g., cerebrospinal fluid and hepatic function), and each chapter consists of a short discussion of basic physiology, followed by a list of the more important tests and the principal changes encountered in disease. The material presented is accurate and up to date, and it is well and simply written, an almost universal virtue of English textbooks. The only defect of this book is its brevity; it is too synoptic. Too much has been left out, and what is presented is given in too short a manner to make it effective. For example, 14 pages are devoted to the basal metabolic rate.