. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 440 FRANCIS M. BALDWIN. A similar series of experiments was performed on four speci- mens (C, B, N and 0) on the following day and the average figures of these contribute to the plot, Fig. 4. The body tem-. 11 12 1 2 FIG. 4. Plot showing the average body temperature drop from four snapping turtles correlated with a slow environmental drop. perature curve shows a comparable drop with that of the environ- ment during the first hour and a half but is checked at about 40 degrees. Body Temperature Fluctuations on Warming.—Two pro
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 440 FRANCIS M. BALDWIN. A similar series of experiments was performed on four speci- mens (C, B, N and 0) on the following day and the average figures of these contribute to the plot, Fig. 4. The body tem-. 11 12 1 2 FIG. 4. Plot showing the average body temperature drop from four snapping turtles correlated with a slow environmental drop. perature curve shows a comparable drop with that of the environ- ment during the first hour and a half but is checked at about 40 degrees. Body Temperature Fluctuations on Warming.—Two procedures were used in these experiments. On warm days with bright sunlight the animals were placed in containers either in air or in slight amount of water and put directly into the warm rays of the sun. In other cases the temperature of the containers was slowly raised by use of an alcohol lamp through a copper conducting unit. The results seemed not to differ greatly in either procedure. As a rule it was found that the animals could withstand gradual increase in temperature in air better than in water. This was due in part, no doubt, to slight though appre- ciable transpiration afforded in the former condition. As illus- trative of the reactions of the painted variety to gradual increase in temperature, data from specimen / are given in Table Y. This particular experiment together with others was carried out on an unusually favorable day, August 6. It was noted that hundreds of turtles were basking in the afternoon sun on old logs in the cove north of the laboratory, and it was thought. 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 perfectly resemble the original Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Car
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