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For instance, he does not mention the fact that carbonic acid is produced in the system somewhat similarly to the formation of coal gas in the furnace; and that its accumulation prevents the entrance of oxygen into the cells and tissues, thus causing asphyxiation or oxygen starvation, which manifests in the symptoms of anemia and tuberculosis. Neither does Dr.
Religion is the free and natural utterance of great, true thoughts, of good and generous feelings, of nature's own rich sentiments and inspirations. The flowery fields, the shadowy woods, the lofty mountains are nobler places of worship than the dark and damp cathedral; and the fresh air of heaven is a diviner inspiration than carbonic acid gas.
I might carry a fresh supply of oxygen, available at need, in some solid combination like chlorate of potash; but the electricity employed for the generation of the apergy might be also applied to the decomposition of carbonic acid and the restoration of its oxygen to the atmosphere.
What sparkled in the glass, making that pretty white froth which phizzed so gently, as if inviting you to drink, was the carbonic acid in the wine, making its escape in thousands of tiny bubbles.
A moderate amount of sulphuretted hydrogen, and also carburetted hydrogen is always present in the colon, normally, to preserve moderate distention of the walls, while the gases usually found in the stomach and small intestine, are oxygen, hydrogen, nitrogen and carbonic acid.
In order to burn, they must have oxygen, and, like us, they are extinguished by carbonic acid. But like us also and indeed to a greater extent, because they consume much more charcoal at once they manufacture carbonic acid. Hence that very illumination which affords the company so much pleasure and pride is plainly an additional cause of danger.
From experiments long ago made by Vierordt see Carpenter, p. 524 you will see the relative per cent, of carbonic acid exhaled from a given number of respirations. When he was breathing six times per minute, 5.5 per cent of the exhaled air was carbonic acid; twelve times, 4.2; twenty-four times, 3.3; forty-eight times, 3; ninety-six times, 2.6.
Coal is put on the top of a glowing mass of charcoal, and the gas distilled off is for a longtime much too cold for ignition, and when it does catch fire it is too mixed with carbonic acid to burn completely or steadily. In order to satisfy the first condition better, and keep the gases at a higher temperature, Dr. Pridgin Teale arranges a sloping fire-clay slab above his fire.
In the mean time I suppose we must be content with making carbon so brilliant as it is in the flame of a candle. Well; now you see that a candle-flame is vapor burning, and the vapor, in burning, turns into water and carbonic acid gas. The oxygen of both the carbonic acid gas and the water comes from the air, and the hydrogen and carbon together are the vapor.
It cleanses the residual air, the air that remains in the lungs after each respiration; and it does much more. Air enters the lungs as oxygen; it comes out as carbonic acid, an impure gas created by the impurities of the body.
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