Lessons in Elementary Physiology, By Thomas H. Huxley ... Ed. for the Use of American Schools And Colleges By Frederic S. Lee ..
The book Lessons in Elementary Physiology, By Thomas H. Huxley ... Ed. for the Use of American Schools And Colleges By Frederic S. Lee .. was written by author Huxley Thomas Henry Here you can read free online of Lessons in Elementary Physiology, By Thomas H. Huxley ... Ed. for the Use of American Schools And Colleges By Frederic S. Lee .. book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Lessons in Elementary Physiology, By Thomas H. Huxley ... Ed. for the Use of American Schools And Colleges By Frederic S. Lee .. a good or bad book?
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It gives, when tested, all the reactions characteristic of proteids, and is, in fact, itself a proteid, although somewhat impure. The clotting of the blood is hastened, retarded, or tempo- rarily prevented by many circumstances. (a) Temperature. — A temperature up to or slightly above 40° C. (104° F.) accelerates the clotting of the blood ; a low one retards it very greatly ; so much so that blood kept at a temperature close to freezing point may remain fluid for a very long time indeed: (b') T...he addition of neutral salts to the blood. — Many salts, and more especially sulphate of sodium or magnesium and sodium chloride (common salt), dissolved in the blood in sufficient quantity, prevent "its clotting ; but clotting sets in when water is added so as to dilute the saline mixture. (c) Contact with living or not living matter. — Contact with not living matter promotes the clotting of the blood. Thus, blood drawn into a basin begins to clot first where it is in contact with the sides of the basin ; and a wire intro- duced into a living vein will become coated with fibrin, although perfectly fluid blood surrounds it.
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