This volume contains a brief summary of the mere important pathologic patterns found in bone marrow in various diseases. The book is divided essentially into two parts, the first dealing with descriptive material on technics of aspiration, classification of cells and pathologic pictures and the second with drawings in color of actual marrow material in the various disorders.
Concerning the first section, Dr. Israels has, fortunately, presented the material in a concise and instructive manner. His classification of cell types stresses easily identifiable changes rather than the minutiae which have tended to make this field so difficult for the student. The material on leukemias, likewise, emphasizes a functional rather than a morphologic approach. The description of marrow findings on the basis of qualitative, rather than "exact" quantitative, features has its merits. Finally, his summaries of pathologic changes of marrow will be of great help in the interpretation of the various