The principal feature of this small volume is the illustration of its text by 220 photomicrographs in color. It is in fact an atlas of histopathology and is intended to be supplementary to a standard textbook. The text is rather brief and is limited mainly to histologic descriptions. Most of the illustrations are good and will be helpful in teaching histopathology. The illustrations of blood cells, however, do not show nuclear structure clearly and are inferior to good drawings. Photomicrographs in color have the advantage that they resemble the stained section closely, yet they usually do not show the details of structure as sharply as good photomicrographs in black and white. This work will prove useful as a supplementary text-book.