. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 52 JOHN TYLER BONNER AND FRANCES ELIZABETH WH1TFIELD blackened box door agar. distance from light source. FIGURE 1. room and while the temperature was relatively steady during any one experiment, the temperature at which the experiments were run varied from 24° C. to 27° C. The light source was a headlight lamp No. 1493. It was set with a transformer so that it received amps, and volts. The intensity of the light was checked hefore and after an experiment with a photocell and a galvanometer. After the
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 52 JOHN TYLER BONNER AND FRANCES ELIZABETH WH1TFIELD blackened box door agar. distance from light source. FIGURE 1. room and while the temperature was relatively steady during any one experiment, the temperature at which the experiments were run varied from 24° C. to 27° C. The light source was a headlight lamp No. 1493. It was set with a transformer so that it received amps, and volts. The intensity of the light was checked hefore and after an experiment with a photocell and a galvanometer. After the pseudoplasmodia had fruited, the plastic boxes were placed upon their sides under a dissecting microscope and camera lucida drawings were made of the sorocarps. The angles were determined by drawing a line from the base through the upper end of the stalk at the point where it enters the sorus (Fig. 1). The vertical position was considered 0°, and any deviation towards light was given a positive angle value, while orientation away from the light was given a negative value. TABLE I Mean angles of deviation from the perpendicular for different size sorocarps at three different distances from a light source. The standard deviations are green fur each mean and the number of cases in parentheses (These are plotted in Figure 2) Ilciuht of sorocarp in mm. Angle of deviation from the perpendicular with the at different distances iijioupeu in size classes of ± mm.) i foot 6 feet 18 feet 10° ± 23°(9) 3° ± 2()°(7) 1° ± 1) -4° ± 14°(22) 53° ± 15°(5) 38° ± 23°((>) 8° ± 20°(20) 52° ± 18°((» 35° ± 190(9) 2° ± 50°(15). 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. ).
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
