The reviewer has reported on previous editions of this book and has always commented favorably. The section on neurology by Walshe seems to be by far the best to be found in any one volume work on practice. The whole text is well written. One may criticize perhaps the ultraconservative point of view adopted at times. Here and there it would have been better to concentrate on what is definitely established to be of value. In the section on renal function, for example, a number of tests which have been generally discarded are still described. In testing gastric secretion the writer always refers to histidine, whereas he probably means histamine. These are minor criticisms, however, and on the whole the book is to be recommended.