The essential criteria of malignancy in exfoliated cells of various types of differentiated from normal, inflammatory, and radiation-induced changes, is as clearly illustrated in this book as in any other. Low power and high power photomicrographs are elucidated by watercolor drawings, diagrams, and the explanatory text. A new chapter on the identification of cells contains the crucial principles of applied cytology but is appended rather awkwardly at the end of the book along with chapters on technical and procedural matters.
The literary style is chatty, and at times telegraphic. Dr. Graham has renounced polysyllabic descriptive terms for those universally meaningful and graphic. The terms "cluttered" or "messy" as applied to a microscopic field need no explanation or apology. An admirable restraint has been applied in limiting the content to logically arranged descriptions and illustrations of diagnostically important cellular criteria. In spite of Dr. Graham's well-known investigative interests in changes due