To this addition have been added two entirely new sections—one on the important subjects of dietetics and one on skin and venereal diseases. The article on dietetics occupies nearly 100 pages and constitutes a valuable addition to the work. In addition to general principles, the dietetic treatment of metabolic diseases and diseases of the digestive organs is described in detail. The section on skin diseases and syphilis gives the technic of various local applications to the skin and especially the methods for the mercurial treatment of syphilis. The book is published in one volume of 979 pages and is well illustrated. To the physician who is acquainted with German, this volume cannot fail to be a valuable guide in the application of instruments and methods of treatment.