Author : John Shaw Billings
Publisher : Forgotten Books
Page : 104 pages
File Size : 50,9 Mb
Release : 2018-02-08
Category : Electronic
ISBN : 0656082275
The Composition of Expired Air and Its Effects Upon Animal Life (Classic Reprint) by John Shaw Billings Pdf
Excerpt from The Composition of Expired Air and Its Effects Upon Animal Life The average for five specimens of fluid condensed from the expired air of a healthy man four hours after he had taken a meal was while the average for six specimens from the breath of the same man half an hour after the meal was only For two specimens from the same man collected three and a half and four hours after a meal, but just after the mouth had been thoroughly rinsed with warm water, the average was These results indicate that the ammonia and oxidizable organic matter in the condensed fluid were, to a large extent, due to products of decomposition of organic matters in the mouth. The well known fact that the amount of oxygen absorbed and of carbonic acid given Off varies accord ing to whether the person is fasting or has recently taken a meal, may possibly be in part due to the same cause, but the results obtained by Birkholz (37) indi cate that it can only be in part. Ransome (11) reports no marked difference in the amount of ammonia, or of oxidizable organic matter, as determined by the per manganate test, contained in the fluids collected from the exhaled breath soon after a meal and in that collected from a fasting person. Beu (31) found a much higher proportion of oxidizable matter in the fluid condensed from his own breath (50 mg. Of oxygen required per litre of fluid) than was found in Dr. Bergey's experi ments. His results indicated the exhalation of 15 mg. Of organic matter in 24 hours, the corresponding figure from Ransome's results being 20 mg. About 12 c. C. Of fluid was collected from about 335 litres of air expired per hour, being nearly equal to the results obtained by Ben who condensed 100 c. C. Of the fluid from three cubic metres Of air expired in eight hours. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
