The increasing favor shown toward this manual indicates that it must have fulfilled to a great extent the purpose as first stated, which was that it should present briefly, but yet clearly, those points which appeared to be essential to the understanding of the subject of pathology.

In the second edition many changes were made both in the arrangement and in the text. This present edition, the third, although not showing much rearrangement, has been enlarged quite markedly. New material has been added, much of the old revised, and other parts completely rewritten. This is particularly the case concerning the chapter on the Blood, which is entirely new.

Many of the old illustrations have been replaced by new and more have been added so that the total number is much increased.

It is hoped that this edition will be received as cordially as the previous two.

Guthrie McConnell. Philadelphia, Pa., September 1915.

The purpose of this volume is not that it shall attempt to take the place of the more voluminous text-books on pathology, but that it shall enable the student especially to rapidly acquire the salient points of a subject. To this end the author has sought brevity, but has tried at the same time not to sacrifice clearness in the exposition of the material.

If the student finds that this manual fulfils the above conditions the author will have accomplished his purpose.

G. McC.

St. Louis, Mo.