This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1901 edition. Excerpt: ...the arteries to contribute to the animal heat of the body. When it is taken into account that the lungs of an average sized man contain upwards of six hundred millions of minute air cells, the surface area of which represents many thousands of square feet, the danger of exposing such a vast area of delicate ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1901 edition. Excerpt: ...the arteries to contribute to the animal heat of the body. When it is taken into account that the lungs of an average sized man contain upwards of six hundred millions of minute air cells, the surface area of which represents many thousands of square feet, the danger of exposing such a vast area of delicate tissue to the action of vitiated air can be readily estimated. No matter how nutritious the food may be that is taken into the stomach, no matter-how perfect the processes of digestion and assimflation are, the blood cannot be vitalized without fresh air. It is estimated that the blood is pumped through the lungs at the rate of eight hundred quarts per hour, and that during that period it rids itself of about thirty quarts of carbonic acid gas, and absorbs about the same amount of oxygen. Think for a moment of the madness of obstructing this interchange of elements which is perpetually going on and on which life depends! It is more especially during the hours of sleep that fresh, pure air is needed, for that is when Nature is busiest repairing and building up, and calls for larger supplies of oxygen to keep up the internal fires, but her efforts at repairing waste are rendered futile if you diminish the supply of the vitalizing element and compel her to use over again the refuse material she has already cast off. V r? The late Prof. Willard Parker, in a lecture delivered before a class of medical students, made a very forcible illustration of how the air of a room was vitiated, in the following impressive words: "If, gentleman, instead of air you suppose this room filled with pure clear water, and that instead of air you were exhaling twenty times a minutes a pint of milk, you can see how soon the water, at first clear and sparkling, would...
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Used Good. Firefly Bookstore sells items online and in our store front. We try to add images and descriptions when we can, but if you need additional information or photos of the books we list, please contact us.
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Very Good+ Book With ads. "three hundred and forty-ninth edition". Old price stampedfr endpaper, else clean. Tight, solid b/w drawings, port. frontis. very good+, no dj, gold-stamped deep green cloth 232 pgs.
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Very Good. Twenty-Eighth Edition, Completely Re-Written, Enlarged And Illustrated. A very good copy. Thebook is sound and tight. The interior is clean, no marks. The graphics on the front board and spine are very bright. Includes a separate pamphlet of " Valuable Suggestions " by Terrell.