. Biology and human life. Biology. Expired air Nitrogen 5« Carbon dioxid i. Fig. 88. Effect of breathing on the air The ratio of oxygen to carbon dioxid is changed from 700: i to 4: i The advantage of large spaces in workshops and other places where people are likely to be crowded together is that they make it possible for the heat and moisture given off by the body to be removed fast enough to insure comfort. The amount of oxygen or of carbon dioxid seems to have nothing to do with the diffi- culties of suitable ventilation. The drowsy effects of a badly ventilated room are due to t
. Biology and human life. Biology. Expired air Nitrogen 5« Carbon dioxid i. Fig. 88. Effect of breathing on the air The ratio of oxygen to carbon dioxid is changed from 700: i to 4: i The advantage of large spaces in workshops and other places where people are likely to be crowded together is that they make it possible for the heat and moisture given off by the body to be removed fast enough to insure comfort. The amount of oxygen or of carbon dioxid seems to have nothing to do with the diffi- culties of suitable ventilation. The drowsy effects of a badly ventilated room are due to the conges- tion, or crowding, of the skin capillaries with blood and the corresponding lack of blood in the brain and the muscles. In the Black Hole of Cal- cutta, in which so many people lost their lives, the victims were supposed to have died from lack of oxygen. It seems more likely that in such cases death really results from heat stroke, due to the excessive humidity (from the perspiration and lung transpiration of the people) and the high temperature (from the heat radiated by the bodies).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Gruenberg, Benjamin C. (Benjamin Charles), 1875-1965. Boston, New York [etc. ] Ginn and Company
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Keywords: ., bookcentury1900, bookdecade1920, bookpublishe, booksubjectbiology
