This book has accurately recorded one of the greatest triumphs of medicine. The author clearly shows how persistent application of sound scientific principles over a prolonged period has resulted in actual control of tuberculosis among cattle and of bovine tuberculosis in human beings. The author cites examples of the many scientific and practical contributions of the veterinary medical profession, with portraits and biographies of leading modern veterinarians and of others associated with the control of disease in domesticated animals. The story of control of bovine tuberculosis is told in clear language and can be enjoyed by the general reading public, although there has been no sacrifice of scientific completeness to adapt the book to this group. The real mission of the book should be one of inspiration to all connected with the current effort to eradicate human tuberculosis by similar methods.