By now Cornell Conferences on Therapy have become familiar to students aiid teachers. The series was begun in 1937 and for several years was published in The Journal of the American Medical Association. Volume I was so successful that a second printing was necessary within a few months after its publication. Volume II, which comprises a series of sixteen conferences, should be equally successful as it will be of interest to the intern, resident, practitioner, and teacher. There were almost forty participants in the conferences, which include discussions of the use of placebos in therapy, treatment of poliomyelitis, treatment of meningitis, treatment of syphilis, treatment of rheumatic fever, oral penicillin, choice of sympathomimetic amines, management of gallbladder disease, principles of treatment of edema and dehydration, uses and abuses of quinidine, treatment of coronary artery disease, treatment of some tropical diseases, surgical treatment of hypertension and the evaluation of local antisepsis.