Licence: Public Domain Mark
Credit: A manual of medical diagnosis / by A.W. Barclay. Source: Wellcome Collection.
Provider: This material has been provided by Royal College of Physicians, London. The original may be consulted at Royal College of Physicians, London.
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![it subservient to practice, it seems desirable to adapt it as much as possible to a scientific and practically useful classification. For this purpose, that has been selected which is in use at St. George’s Hospital, which, it is hoped, will be intelligible to all, as it is most familiar to myself; but it is not put forward here as possessing any claims to perfection. Its princijile is— I. To throw into a large group at the commence- ment all those diseases which, while perhaps manifest- ing themselves in particular organs, are more or less proved to have their origin in general conditions of system. This is again subdivided into twenty-one heads, grouped in the following order :— 1. Those which are believed to have a specific origin; of which the febrile diseases are placed first, including many of the so-called “ zymotics.” Next come rheumatism and gout, followed by such as are wholly adventitious, the poisons, entozoa, &c. 2. Diseases of uncertain or variable seat, dropsies and htemorrhages, which, pathologically, might be re- garded as merely indications of deeper-seated lesion, but which, from the consistency of their signs and symptoms among themselves, and their dependence on a variety of causes, also demand separate invest!- ] gation. I 3. The chronic blood ailments—purpura, scurvy, antemia, &c. 4. The constitutional ailments of solid parts; scro- fula, tubercle, and morbid growth. 5. The quasi-nervous diseases; the symptoms of which are principally derived from functional derange- ments of the nervous system, in the ultimate distri- bution of its filaments, and in relation to muscular fibre: they thus stand in juxtajiosition to diseases of the brain and nerves immediately following. II. To take in detail the diseases of special regions, or systems of organs. In this class we commence with the brain and nerves.](https://iiif.wellcomecollection.org/image/b24989812_0044.jp2/full/800%2C/0/default.jpg)