Histochemistry, Theoretical and Applied

municable disease control to the newer responsibilities of the hazards of ionizing radiation and medical defense against atomic attack. The individual topics are adequately developed with emphasis, in the majority, on brevity of presentation rather than complete and exhaustive detail. References are listed after each chapter for the reader desiring more definitive information. "Epidemiologic Methods and Inferences" by Dr. Dienfeld and "Official and Voluntary Health Agencies" by Dr. Hilleboe are two chapters which offer especially well-organized, succinct, and effective discussions of their respective subjects. The editors state in their preface that they are presenting ". . a new way to look at preventive medicine for the medical students, general practitioners, specialists, and professional workers in official and voluntary health agencies." In the opinion of the reviewer, the authors have achieved their purpose by editing a book which is more an introductory text than a reference tome.