This pamphlet was prepared for the use of classes in sanitary science in the College of Liberal Arts, University of Colorado. It contains 420 titles, covering such subjects as infection, immunity, toxins, antitoxins, opsonic methods, disinfection and disinfectants, water, milk and food supplies, sewage disposal, vital statistics, patent medicines, public health administration and others. It is impossible, of course, that a bibliography covering such a range of subjects within so small a compass should make any attempt at exhaustiveness; but the annotations, which are analytical and to some extent critical, add to its usefulness.