Immunity: Methods of Diagnosis and Therapy and Their Practical Application.

This edition of Citron's well-known manual on immunity will undoubtedly prove even more popular than the first. The subject-matter has been brought thoroughly up-to-date through valuable additions made by the editor. In these days the subject of immunity and immunologic reactions has become so extensive that the general worker may hope for little beyond a slight knowledge of this field. Books like this present the material in such a clear-cut and concise manner that the more important phases of the work may be grasped in a short time. Moreover, this book gives such attention to detail of technic that one may become qualified to perform the usual tests applied to such investigations. It is not to be supposed, however, that the mere mastering of technic will make a specialist in such work. Citron, as well as many others, emphasizes the fact that careful study of the variations arising in different