The book is intended as a basic textbook for students and physicians. It serves only this purpose. The text is sketchy, without thoroughness in background or discussion of controversial materials. The illustrations are poor. There is a good section on definitions, which, in view of the confusion in hematological terminology, is most helpful. The section on methodology is also good and adds to the value of the book. The absence of a bibliography represents a grave deficiency. Unfortunately, the book contributes nothing new to the hematological literature.