Licence: Public Domain Mark
Credit: A manual of pharmacodynamics / by Richard Hughes. Source: Wellcome Collection.
Provider: This material has been provided by the Francis A. Countway Library of Medicine, through the Medical Heritage Library. The original may be consulted at the Francis A. Countway Library of Medicine, Harvard Medical School.
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![book of my course, and the groundwork of the lectures I delivered. Such fresh matter as from time to time I have brought before my class, and such improvements in presenta- tion as have occurred to me while going on, I have incorporated into the substance of the book which is now offered to the profession in its fourth edition. I have described this as revised and augmented. It is not, as was the third edition, mainly re-written : the frame- work on which that was constructed will be found here substantially unaltered. But it has been filled in with a liberal hand, so as to make the volume more than one-fourth larger than its predecessor, and—I hope—proportionately more satisfying to the student. There is hardly an article v/hich has not received some fresh touch; and those on most of the polychrests, and on Chamomilla, Gelsemium, Iris, Plumbum and others have been much enlarged. Supplemen- tary lectures on some minor and recently-introduced medicines are appended; while several of those which occupied sucb rank in the former edition find place in the main series, in> which also will be found new sections on the picric and salicylic acids, on chlorine and its derivatives, and on CEnanthe crocata. Following upon the introductory lecture will be found six new ones. The two on the sources of the Homoeopathic Materia Medica contain the substance of the little book I have published under that title. Those on the general prin- ciples of drug-action bear the same relation to the lectures I- delivered at the London Homoeopathic Hospital in 1877, andl which appeared in the earlier numbers of the Monthly Homoeo- pathic Review of that year. That entitled Homoeopathy— what it is is a similar reproduction of the paper on The Two Homoeopathies which I had the honour of reading at the British Homoeopathic Congress held at Liverpool in 1877- and that on Homoeopathic Posology has already appeared in the British Journal of Homcropathy iox ']^nMz.ry, iSyg. By including these materials in my present volume, I have made it contain all work I have hitherto been able to do in the field](https://iiif.wellcomecollection.org/image/b21059986_0013.jp2/full/800%2C/0/default.jpg)
