by Oscar Felsenfeld, M.Sc., M.D., Chief, Division of Communicable Diseases, Tulane University, Delta Regional Primate Research Center; Adjunet Professor of Microbiology, Tulane University School of Medicine; Consultant in Cholera, World Health Organization. xii + 165 pages, illustrated. Warren H. Green, Inc., St. Louis, Missouri. 1967. $7.25