. The Intellectual observer. easured by means of a delicate therino-multiplier. The per-centage of carbonic acid contained in the different specimensof breath is found by calculation and subsequent experiments, and is then com-pared with a chemical analysis of each specimen made by Dr. Frankland. The close agreement between the methods of analysis is shown by the followingnumbers:— By physical analysis. By chemical analysis. Bag 1 400 4-31 Bag 2. 4-66 456 Bag 3 533 522 These numbers indicate the per-cent. of carbonic acid in breath, and showthat in these experiments the least amount of that ga
. The Intellectual observer. easured by means of a delicate therino-multiplier. The per-centage of carbonic acid contained in the different specimensof breath is found by calculation and subsequent experiments, and is then com-pared with a chemical analysis of each specimen made by Dr. Frankland. The close agreement between the methods of analysis is shown by the followingnumbers:— By physical analysis. By chemical analysis. Bag 1 400 4-31 Bag 2. 4-66 456 Bag 3 533 522 These numbers indicate the per-cent. of carbonic acid in breath, and showthat in these experiments the least amount of that gas was exhaled before break-fast. Many other different samples of breath have been examined by Mr. Barrett;the results he has obtained prove the great delicacy ot the new method of analysisin detecting small quantities of carbonic acid, or in discovering variations in theamount of this gas in the atmosphere or in the human breath. For this purposeits application in hospitals has already been suggested by eminent men. WSHSB*.
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Keywords: ., bookcentury1800, bookdecade1860, bookpublishe, booksubjectscience
