Dr. Foster has added to the large existing literature of diabetes, not a monograph containing new discoveries, but a valuable compilation of existing knowledge for the general practitioner. This it frankly purports to be, and that there is need for such a book in English admits of little question. The value of such a compilation resides wholly in the critical judgment exercised by the author in selecting from the vast material in the field, in the point of view from which he surveys that material, and the clearness and order of its presentation. The compilation by a man who has done no independent work in a field can have no value because such a man possesses no basis for critical judgment.
Dr. Foster has been a student of diabetes both from the clinical and the biochemical standpoints, and he has succeeded in selecting what is essential and in presenting with