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ON AN ACCUMULATION OF GAS IN THE TISSUES OF THE FROG AS A RESULT OF PROLONGED SUBMERSION IN WATER
Author(s) -
Cameron A. T.,
Brownlee T. I.
Publication year - 1915
Publication title -
quarterly journal of experimental physiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.925
H-Index - 101
eISSN - 1469-445X
pISSN - 0370-2901
DOI - 10.1113/expphysiol.1915.sp000205
Subject(s) - submersion (mathematics) , buoyancy , distension , chemistry , zoology , environmental science , hydrology (agriculture) , biology , geology , mathematics , physics , geotechnical engineering , medicine , mechanics , mathematical analysis , differentiable function
(1) Specimens of R. pipiens immersed in Winnipeg tap‐water during late winter and spring will live on the average sixteen days. The extreme periods observed are three and fifty‐two days. (2) The frogs remain perfectly normal for some time, but at a variable period before death ensues—usually several days—they commence to swell. The swelling is due in all cases to the absorption of water, and in most cases this is accompanied by retention of absorbed nitrogen, resulting in a degree of buoyancy which tends to keep the frogs at the surface of the water. If the frogs are removed from the water at any stage before death occurs, they recover completely in a few days. If allowed to remain, death ultimately takes place, and is presumably connected, physically or chemically, with the distension. (3) The causes of the phenomena are discussed, and other experiments described which throw some further light upon them. In conclusion, we wish to thank Professor Swale Vincent for the interest he has taken in the work throughout its course.