notes on military hygiene for officers of the line a syllabus of lectures at

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Purchase of this book includes free trial access to www.million-books.com where you can read more than a million books for free. This is an OCR edition with typos. Excerpt from book: III. POOD. 255. " Force manifested in the living body must be the correlative expression of force previously latent in the food eaten or the tissue formed." That is, a soldier's food must be adequate to repair the ordinary .wear and tear and, if unfortunately he is yet a growing lad, to supply additional tissue. 256. Food supplies energy and animal heat, partly directly and part.ly by replacing expended tissue. 257. There are five general classes of food, viz.: the albuminates (flesh); the hydrocarbons (fats); the carbohydrates (starch and sugar); the salts; and water. In one sense the air also may be called a food. These are combined in two groups, the nitrogenous and the non-nitrogenous. 258. The nitrogenous substances are necessary in the manifestations of energy. 259. " Every structure in the body in which any form of energy is manifested, as heat, mechanical motion, chemical or electrical action, is nitrogenous." (Parkes.) 260. The presence of nitrogen controls the absorption of oxygen from the atmosphere. " The absorption of oxygen does not determine the changes in the tissues, but the changes in the tissues determine the absorption of oxygen." (Parkes.) 261. Life is really a form of motion; the moment a tissue or a body is microscopically at rest it is dead. 262. The albuminates, or albuminoids, receive their class name from their most marked ingredient —albumen. Albumen is a complex substance, chiefly remarkable for the presence of nitrogen (N) and of a little sulphur (S). Its formula is OH6CS. 263. The albuminates are found in the flesh and blood of animals, in milk as casein, in seeds—especially in legumes, and in a certain proportion in the gluten of wheat and in other cereals. 264. The various albuminates are not identical, but are simi... --This text refers to the Paperback edition.
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