Manual of diseases of the skin / from the French of Cazenave ; with notes and additions by Thomas H. Burgess.
- Pierre Louis Alphée Cazenave
- Date:
- 1854
Licence: Public Domain Mark
Credit: Manual of diseases of the skin / from the French of Cazenave ; with notes and additions by Thomas H. Burgess. Source: Wellcome Collection.
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![both générations. Amongst the most powerfnl of individual pre- disposing causes is tbat peculiar idiosyncrasy, under wliich certain persons are attacked by diseases of the skin from causes of apparently the most trivial nature : indeed, in many persons of tliis class we are unable to trace any probable cause whatever. The great estent of the skin, and number of capillary vessels and nerves distri- buted to it, point out the intimate sympathy which exists between the skin and the internai organs, and explain how readily func- tional or organic diseases of the viscera affect the tegumentary System. [In the last édition, M. Cazenave refers to tliis resem- blance in fonn in hereditary diseases of the skin, in more positive terms, and mentions ichthyosis as the most remarkable instance.] The trades which seem to prédisposé most readily to cutaneous diseases are those which give rise to constant excitement of the skin; hence masons, workmen, farriers, &c., are very subject to these dis- orders. The influence of trade is particularly marked in causing relapse, and especially when the skin is exposed to the action of heat or acrid substances. But there is no relation between the cleanli- ness of a trade and its tendency to guarantee the workman from diseases of the skin, or vice versâ. Thus, nightmen, scavengers, coalheavers, &c., are not peculiarly subject to cutaneous affections, while the exercise of a trade which requires eleanliness and repose is far from acting as a preservative. Season has likewise a well-marked influence on the development of diseases of the skin, which are much more frequent during spring, than at any other period of the year. The same remark ap- plies to climate. Cutaneous affections are much more severe in warm than in temperate climates. In Greece, Palestine, Egypt, and India, they présent appearances, and assume a degree of severity, unknown in the climates of the north. Constant heat and moisture of the atmosphère, also promote the existence of many cutaneous diseases. The parts of Europe in which skin diseases most abound are Britanny, Picardy, Flauders, Holland, Lombardy, certain districts in Eugland and Scotland, the borders of Holstein and Norway; and the Crimea. They are most common in capital or large towns, and chiefly prevail in the dirty and ill-ventilated dis- tricts of crowded cities. The influence of light, in the production of some cutaneous disorders, is well known. During spring, the](https://iiif.wellcomecollection.org/image/b28049573_0034.jp2/full/800%2C/0/default.jpg)
