. Barometric pressure : researches in experimental physiology. Atmospheric pressure; Physiology, Comparative; Anoxemia; Altitude, Influence of. Gases of the Blood 645 ditions, the oxygen which would have been present in excess be- cause of the reduced pressure could escape from the blood, which was supersaturated at this new pressure. The flask was large enough in proportion to the quantity of blood, so that the oxygen thus set free was absolutely negligible. Furthermore, I made sure by a simple procedure that the pressure had not varied perceptibly during the Fig. 42—Water motor s
. Barometric pressure : researches in experimental physiology. Atmospheric pressure; Physiology, Comparative; Anoxemia; Altitude, Influence of. Gases of the Blood 645 ditions, the oxygen which would have been present in excess be- cause of the reduced pressure could escape from the blood, which was supersaturated at this new pressure. The flask was large enough in proportion to the quantity of blood, so that the oxygen thus set free was absolutely negligible. Furthermore, I made sure by a simple procedure that the pressure had not varied perceptibly during the Fig. 42—Water motor shaking the flask containing the blood to be satu- rated with oxygen. When this was done, I took a new sample of the blood for analysis of the gases. Since I placed in the flask about 200 cc. of blood, it was possible for me to make several analyses with the same blood at different pressures. Later, a useful improvement was added to this method, whose principal cause of error lies in the difficulty of shaking hard enough with the hand. The flask was firmly fixed on a plank which was vigorously moved by a little water motor (Fig. 42). Under these conditions, the saturation of the blood was accomplished with great rapidity, and a few whirls of the sling were enough to dispel the froth and the bubbles of gas in 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 Bert, Paul, 1833-1886; Hitchcock, Mary Alice; Hitchcock, Fred Andrews, 1889-. Columbus, Ohio : College Book Company
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Keywords: ., bookcentury1900, booksubjectatmosphericpressure, booksubjectphys
