Animal And Vegetable Parasites of the Human Skin And Hair
The book Animal And Vegetable Parasites of the Human Skin And Hair was written by author Jeffries, B. Joy (Benjamin Joy), 1833-1915 Here you can read free online of Animal And Vegetable Parasites of the Human Skin And Hair book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Animal And Vegetable Parasites of the Human Skin And Hair a good or bad book?
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The vegetable matter also gets, by scratching, beneath the nail, where it takes root and germi- nates, as there it finds all the requisite elements for development ; namely, a steady degree of warmth, moisture, and a quiet resting-place. After the spores have remained for some time, and commenced to germinate beneath the nail, the latter becomes thickened over the affected part, while the color changes, becoming gradually more and more yellow, from the favus mould shining through. As the fungus... grows and increases, it gradually presses on the nail, causing further changes, the longitudinal striae become very evi- dent, and fissures are formed. By degrees, as the pressure on the subjacent nail continues, it becomes thinner and thinner, until a perforation occurs, and then a favus cup makes its appearance exter- nally, more or less deformed, however, owing to OP THE HUMAN SKIN. 77 the pressure previously exercised upon it from above. In an excessive case of favus of the scalp or body, the appearances are so marked, that any one who has ever seen a case, or a good portrait of one, would be in no doubt as to the nature of the affec- tion.
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