This volume is intended for those in charge of the examination of milk for the protection of the public health. It is not, however, a mere laboratory manual. In fact, some of the methods are given in a way that would be intelligible only to an experienced worker. There are excellent critical discussions of a variety of tests serviceable at times in a public health laboratory, as well as the various chemical and bacterial tests employed in routine work. The discussions of analytic methods are preceded by chapters dealing with the composition of milk. The book is noteworthy for its concise presentation of the problems arising in milk examination.