. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 242 ARTHUR C. GIESE due to temperature changes and temperature differences for different experiments (T = 15 ± 1° C.)- It is possible that minor errors in estimates and in other experimental procedures add further to the spread. Examination of Fig. 2 discloses that the order of efficiency of the wave-lengths used, on the basis of incident energy, from the most effective to least is (1) 2804A, (2) 2537, 2654, 3025, (3) 3130 and (4) 3660. The difference between (1) and (2) is not large; the difference 6 r— s LEGEND 2537 A 2654
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 242 ARTHUR C. GIESE due to temperature changes and temperature differences for different experiments (T = 15 ± 1° C.)- It is possible that minor errors in estimates and in other experimental procedures add further to the spread. Examination of Fig. 2 discloses that the order of efficiency of the wave-lengths used, on the basis of incident energy, from the most effective to least is (1) 2804A, (2) 2537, 2654, 3025, (3) 3130 and (4) 3660. The difference between (1) and (2) is not large; the difference 6 r— s LEGEND 2537 A 2654 A )\2804 A >\3025 A 3/30/4 3650 A. D « I LOG OF INCIDENT ENERGY IN ERGS/ MM* FIG. 2. Difference in efficiency of various wave-lengths in retardation of cleavage. A. Curve drawn through points for X2804A. B. Curve drawn through points for X's 2537, 2654, and 3025A. C. Curve drawn through points for A3130A. D. X3660A. between (2) and (3), however, is great and between (3) and (4) very great. The difference in efficiency at the different wave-lengths may be due to the differences in absorption at the various wave-lengths. According to the Grotthus Draper law, only absorbed light is effective in promoting a photochemical reaction. If there is to be exact pro- portionality between absorption and effect, we should expect that the absorption at X2804A would be about double that at X2537, 2654 and 3025A and about 20 times that at 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, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
