This book is concerned primarily with an exposition of surgical errors and a definition of the legal responsibilities of the surgeon. The volume is divided into three parts. The first part, consisting of seven chapters, deals with errors of observation and diagnosis, of indications for operation, and of prognosis and technic. Means of avoiding these errors are indicated and certain fundamental technical rules are given. The second part, consisting of eleven chapters, is devoted to the legal responsibilities of the surgeon with particular attention to the authorization for and indications of operation, errors in asepsis and antisepsis, overlooked foreign bodies, and tetanus and burns. The third part, which is the most extensive, considers surgical disorders involving special regions of the body. The various factors influencing diagnosis and prognosis are enumerated and discussed. The authors' purpose, "to recognize one's errors and to find out their causes," has been well fulfilled. An appendeda bibliography would have enhanced the reference value of this