It is a significant event when a new edition of this book is printed. The previous two editions have occurred at five-year intervals. New chapters are presently included on, "Social Services and Public Health," "Addictive Diseases," and "The Past As a Prologue." Chapter titles have been changed from "Sociological Aspects of Public Health" to "Behavioral Science and Public Health" and "Cultural Anthropology and Public Health" to "Social Pathology and Public Health." Two chapters, "International Health Programs, Their Growth and Activities" and "The Design of Technical Assistance Programs," have been deleted as such and incorporated into other portions of the book.
The author recognizes that some phases of public health progress are not increasing at their former rate and he states, although not as an explanation of the above, that "most of the health departments' budget is devoted to the salaries of professional workers who serve groups thereof. Nothing is manufactured;