. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 224 FRANK A. BROWN, JR. 20 u < 10 - I -2 LOG CONCENTRATION - 3. -I - 2 LOG CONCENTRATION - 3 FIGURE 5. Relationship between extract activity on red chromatophores and log of concentration. A. Sinus gland extract. B. Extract of optic ganglia. to be essentially a simple linear one. The activity was determined in the manner described by 1'rown and Sandeen (1948) in which the total of all the average chromatophore readings at 15 minutes, 30 minutes, and at 30-minute intervals thereafter until the end of the effect are added t
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 224 FRANK A. BROWN, JR. 20 u < 10 - I -2 LOG CONCENTRATION - 3. -I - 2 LOG CONCENTRATION - 3 FIGURE 5. Relationship between extract activity on red chromatophores and log of concentration. A. Sinus gland extract. B. Extract of optic ganglia. to be essentially a simple linear one. The activity was determined in the manner described by 1'rown and Sandeen (1948) in which the total of all the average chromatophore readings at 15 minutes, 30 minutes, and at 30-minute intervals thereafter until the end of the effect are added together. The difference between this sum and the corresponding sum at the same time intervals which would have indicated no activity was considered a reasonable measure of the activity since it incorporated both the amplitude and duration of effect of the injected extract. Using this dilution-series information to indicate the relationship between the con- centration of the principle concerned and the amount of activity, and then using values of activities calculated in a similar manner from the data of Figure 3, it may l>e estimated that the optic ganglia and brain both contain approximately the same quantity of the principle. The sinus glands appear to possess only about one-half. 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
