. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. • - M. M. WILLIAMS AND M. H. JACOBS -ince cell counts were made in every case. In the absence of ' information concerning the osmotic pressures of the various -tudied, the concentration of NaCl employed was taken, unless erwise indicated, as M. Such solutions have a freezing point »f approximately —° C., which is not very far removed from that of the plasma of the various marine teleost fishes for which figures are ,t\ailable; and at all events the concentration was the same for the various brands of salt emp
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. • - M. M. WILLIAMS AND M. H. JACOBS -ince cell counts were made in every case. In the absence of ' information concerning the osmotic pressures of the various -tudied, the concentration of NaCl employed was taken, unless erwise indicated, as M. Such solutions have a freezing point »f approximately —° C., which is not very far removed from that of the plasma of the various marine teleost fishes for which figures are ,t\ailable; and at all events the concentration was the same for the various brands of salt employed, so that the results were entirely Comparable among themselves. It will be noted in Fig. 2 that for the duration of the experiment 2,000 - 1,000-. 0 FIG. 2. Effect of exposing erythrocytes of the scup (Stenotomus chrysops)to M/4 solutions of brands B, C, D and E of NaCl and to M/4 KC1. Ordinates repre- sent numbers of cells per cubic millimeter and abscissae times in hours. (5 hours) there was no appreciable decrease in tin- number of erythro- cytes in solutions of brands B and C, while in similar solutions of brands n and /•.' the numbers had decreased very appreciably within one half hour and very few erythrocytes remained at the end of four hours. It may be mentioned incidentally that the erythrocytes of the scup, like those of the sea robin, are relatively resistant ones; those of the butter- fish or of the cunner disappear far more rapidly. This particular experiment is typical of several dozen others differ- ing in detail but all giving essentially similar results. In addition, many incidental observations by \Y. A. Smith, S. K. Mill and A. K. I'arpart working with one of the authors on other problems in which cell counts were not made but hemolysis was followed by a macroscopic. 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
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
