Treatise on the Dog c. 1908 G.W. Clayton patent medicine Grooming Training Guide(Old Books, 19th Century Books, Advertising, Dogs, Veterinary patent Medicine, Grooming, Training). A Treatise on the Dog, by G. W. Clayton. Published c. 1908, Springfield, Illinois by Stuart Broadwell. 28 pages. Text in English. Illustrated throughout w drawings and bw photos. Publisher's lithographed paper wrappers. Scarce and interesting item relating to patent medicine and dogs. Booklet is physically old and shows some signs of handling and time.