The thirteenth edition of Delafield and Prudden's well known Text Book of Pathology has appeared. On the whole, the form and arrangement of the contents have not been materially altered either in this edition or in recent former editions.
Attention is called in the preface to the large amount of chemical and physiologic data that is of interest in the field of pathology, much of which has not as yet been correlated or digested. To do this will take time. Authors of pathology textbooks and especially those concerned in the preparation of revisions will find a fertile field for many years to come in selecting and sifting contributions in both near and remote fields and arranging them in such a way that they will become satisfactorily incorporated in standard works. The tendency to multiply texts in various special or related fields will not solve the problem. The time allotted for