This very readable volume is a good example of the marked change in subject matter and direction that the field of preventive medicine has taken during the past two decades. Although the editors have seen fit to include some information reminiscent of the days when considerable attention was given to the design of pit privies and well construction, these instances are few. Even in the sections dealing with the control of the environmental factors involved in the prevention of the occurrence of disease, they have stressed the modern problems of this country, such as radiation, air pollution, and housing.
There has been considerable effort made to present the material in such a fashion that it would have a greater meaning to the general physician and medical student, rather than to those whose major interest is public health. Except for the small sections on vital statistics and epidemiologic methods and inferences,