Virus Diseases and Viruses

Public Health. To this end he includes sections on general and clinical bacteriology, clinical mycology, immunity, animal parasites and disease vectors, Public Health laboratory practices, field work, surveys, and office problems. The book is designed to be chiefly a laboratory manual and notebook, although much text is included as well, and the selection of experiments is complete and well organized. The difficulties of inserting all of this material into the confines of less than 500 pages are enormous and from a literary standpoint, in particular, only too evident. There are many infelicitous expressions, and statements are often condensed with so much pressure that some ambiguity results. It is unfortunate that a book which would seem to fill a real need in medical schools lacking Departments of Public Health should be marred by so many distracting features. PHILIP B. COWLES.