This edition, like the first, is intended for medical students. The material is presented in a way that might be useful to the physician in general practice, however, and to this end a new chapter on the relation of the physician to the health department has been added. In the brief confines of four hundred pages the author has covered all the communicable diseases, together with a chapter on such systemic diseases as cancer, diabetes, heart disease and rheumatism. Then follow chapters on insects and parasitic worms, disinfection, water, food, air and ventilation, waste disposal and sewerage, housing, occupational hygiene, maternity and infant hygiene and personal hygiene. The range is so great that only brief attention can be given each item. The information is succinct and accurate, however, and the book should prove useful for the purpose intended. Statistics that are given are mostly for England and Wales. The chapter