Special attention is directed to the index in this volume. It is, in effect, a bibliography, including references not only to articles in this book but also (1) to articles which appeared in Volume 1; (2) to articles on the same general subject in _The Journal of the American Medical Association_, and (3) to the articles appearing in the annual reports of the Council on Pharmacy and Chemistry and of the A. M. A. Chemical Laboratory, but not reprinted in either volume of the Propaganda for Reform in Proprietary Medicines. PREFACE TO VOLUME 1: NINTH EDITION From time to time _The Journal of the American Medical Association_ has published the reports of the Council on Pharmacy and Chemistry and the Chemical Laboratory, as well as other matter on proprietary medicines. Repeated requests for some of the matter have led to the compilation of “The Propaganda for Reform in Proprietary Medicines,” which, in the present volume, attains its ninth edition. The seventh, eighth and ninth editions have been compiled on slightly different principles from their predecessors. The therapeutic reform work of _The Journal_ and of the Association’s Chemical Laboratory was at first confined almost entirely to the criticism and analysis of the so-called ethical proprietaries. This was right; the medical profession owed it to the public to combat the nostrum evil within its own ranks. As the more flagrant evils of the “ethical proprietary” question were mitigated, the Association has turned the light on the more widespread and dangerous “patent medicine” evil. The articles devoted to “patent medicines” or quackery being naturally of greater interest to the general public than to the medical profession, the number of inquiries from laymen regarding various quacks and nostrums has steadily increased. It has been thought best, therefore, to publish separately all of the matter from _The Journal_ relative to quackery and to those nostrums exploited only or chiefly to the public, and to include in the Propaganda for Reform practically none of the matter that is of direct interest primarily to laymen. In one or two instances in which the subjects were of equal interest to the profession and to the public, matter that has already appeared in “Nostrums and Quackery” is also given here; but as a general rule the contents of the ninth edition of “The Propaganda for Reform” are of strictly professional interest. Those physicians who are desirous of obtaining in convenient form the matter dealing with “patent medicines” should order the book “Nostrums and Quackery” or the various pamphlets on the same subjects that have been issued since “Nostrums and Quackery” came from the press.