File:Injury, recovery, and death, in relation to conductivity and permeability (1922) (14779949861).jpg

Identifier: injuryrecoveryd00oste (find matches)
Title: Injury, recovery, and death, in relation to conductivity and permeability
Year: 1922 (1920s)
Authors: Osterhout, W. J. V. (Winthrop John Van Leuven), 1871-1964
Subjects: Physiology Electric conductivity Death (Biology)
Publisher: Philadelphia London : J.B. Lippincott Company
Contributing Library: Robarts - University of Toronto
Digitizing Sponsor: University of Toronto

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stance at anygiven time after replacement in sea water. A series of TABLE VI. Recovery in Sea Water after Exposure of 15.9 Minutes to 0.52m NaCl. Total time=tiiBe in sea Time in sea water Electrical resistance water-f 15.9 Observed Calculated mxn. mm. per cent. ■per cent. 26.5 10.6 89.10 88.77 37.1 21.2 93.21 91.34 58.3 42.4 93.99 92.43 84.8 68.9 94.48 92.52 121.9 106.0 94.20 92.55 164.3 148.4 93.81 92.55 545.9 530.0 94.00 92.57 863.9 848.0 93.87 92.57 values so obtained is given in Table VI. It will be seenthat they are in good agreement with the experimentalvalues. The calculated and observed values are alsoplotted in Pig. 41, in which the abscissjc represent the timein the solution of NaCl plus the time of recovery in seawater (in the case just discussed this would amount to15.9+10.6=26.5 minutes). INJURY AND RECOVERY 107 Proceeding in this manner with different times ofexposure we obtain the series of recovery curves shown inFig. 41. The number attached to each curve denotes the
Text Appearing After Image:
eOOmia Fig. 42.—Curves showing the rise and fall of net electrical resistance in Laminaria agardhiiin 0.278 M CaCb (single curve which rises and falls) and recovery in sea water (descendingcurves). The figure attached to each recovery curve denotes the time of exposure (in min-utes) to the solution of CaCh. In the recovery curves the experimental results are shownby the dotted lines, the calculated results by the unbroken lines. The observed points repre-sent the average of eight or more experiments. Probable error of the mean less than 10% of the mean. time of exposure to the solution of NaCl. The observedresults are plotted as dotted lines, the calculated valuesas unbroken lines. It will be seen that the agreement is satisfactorythroughout. In general the greater the number of experi- 108 INJURY, EECOVERY, AXD DEATH ments wliich were averaged to obtain the result the nearerit approached to the calculated curve. Let UK now consider the beha\ior of tissues transferredfrom a solution

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