Hay-Fever and Asthma, their cause prevention and treatment. By Ray M. Balyeat, M.A., M.D., F.A.C.P., Instructor in medicine and lecturer on allergic diseases in the university of Oklahoma medical school; Consulting Physician to St. Anthony's hospital and to the state university hospital; member of the American association for the study of allergy; Vice-President, Oklahoma academy of science; Director, Balyeat Hay-Fever and Asthma clinic, Oklahoma city, Okla, Illustrated with 76 engravings, including 2 in colors, Second edition, revised and enlarged, Philadelphia: F. A. Davis company, 1928. Price $3.00 net