The first edition of this book was so well received and is so well known that it is necessary to mention only such changes and additions as appear in this, the second edition. The most noteworthy addition is the chapter on the pathology of appendicitis, written by Dr. A. O. J. Kelly. This covers 120 pages, and is based on a careful and systematic study of the large amount of material placed at his disposal by the author.
The various pathologico-histologic changes are well described and excellently illustrated by numerous plates in color, and black and white, and the work of others in the same line receives due consideration.
The author's views on treatment are forcibly and positively expressed, in a manner born of honest convictions based on a very large experience. His advice to operate immediately in all cases in which an early diagnosis has been made—within the first