. Carnegie Institution of Washington publication. INDUCED RHYTHM IN TRANSPIRATION. 69 \e ^65 -^ 10 12 4 6 8 10 12 4 6 Fig. 24.—Curves for experiments 65 and 66. Fouquieria splendens, In all the above eight cases the rate commences to increase shortly after midnight and rises to an early maximum, in five cases at 6 a. m., and in one (60) at 5 a. m. In the controls a normal behavior is shown, the maximum being reached at 12 day and 3 p. m. The drop in 66 between 11 a. m. and 12 day was due to a 15-minute exposure to darkness. Experiments 73, 74.—July 21, 1904. Ocotillo. Burette
. Carnegie Institution of Washington publication. INDUCED RHYTHM IN TRANSPIRATION. 69 \e ^65 -^ 10 12 4 6 8 10 12 4 6 Fig. 24.—Curves for experiments 65 and 66. Fouquieria splendens, In all the above eight cases the rate commences to increase shortly after midnight and rises to an early maximum, in five cases at 6 a. m., and in one (60) at 5 a. m. In the controls a normal behavior is shown, the maximum being reached at 12 day and 3 p. m. The drop in 66 between 11 a. m. and 12 day was due to a 15-minute exposure to darkness. Experiments 73, 74.—July 21, 1904. Ocotillo. Burette potometer; pieces placed in dark room at ioh30m p. m., reading commenced at 6h30m a. m., a maximum was developed at 7h30m a. m. (See fig. 18, of experiment 74 only.) Experiments 80, 81, and 82.—Aug. 10-11, 1904 (fig. 25). Placed in dark room at 9 p. m.; placed in light at 10 a. m., after 15 hours of total darkness; temperatures given during these hours are those of dark room. Experiment 83, fig. 26, differed only in being placed in the light for 5 minutes, at 9^30™ a. m., Aug. 4 6 8 10 12 Fig. 25.—Curves for experiments 80, 81, and 82. 4 6 8 Fouquieria 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 Carnegie Institution of Washington. Washington, Carnegie Institution of Washington
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