The second edition of this valuable text-book on histology appears in a form which is a great improvement over that of its predecessor. Although the text has been added to and the number of illustrations increased by 26 new plates, the volume is only half the thickness of the first edition, owing to the light paper and the flexible cover. The additions to the text are found chiefly in the sections dealing with histologic technic, but there is also a new section on the hemolymph glands, giving the results of Warthin's researches. The section on neuroglia is also enlarged. The new illustrations, many of them from Sobotta's atlas, show a tendency toward realism which is highly to be commended in a book designed for students.