. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. pH 0 20 40 60 80 100 120 140 160 180 200 ACTIVITY (beats per minute) FIGURE 1. The relative frequencies of constant activities lasting at least ten minutes at pH , , and There were 66 observations at pH , 206 at pH , and 57 at pH electrode, chosen because it is insensitive to stirring, was placed inside the vial, while another electrode in the bath recorded the oxygen content of inhaled water. A stirrer was placed in the bath to both stir the electrode and to keep the water evenly mixed. Constant p
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. pH 0 20 40 60 80 100 120 140 160 180 200 ACTIVITY (beats per minute) FIGURE 1. The relative frequencies of constant activities lasting at least ten minutes at pH , , and There were 66 observations at pH , 206 at pH , and 57 at pH electrode, chosen because it is insensitive to stirring, was placed inside the vial, while another electrode in the bath recorded the oxygen content of inhaled water. A stirrer was placed in the bath to both stir the electrode and to keep the water evenly mixed. Constant pH was maintained during this experiment by adding Tris(hydroxy- methyl)aminomethane (10 mg/liter) to the water before the experiment. An experiment consisted of placing an animal in water of a specified pH and reducing the partial pressure of oxygen to approximately 6-10 mm Hg by bubbling nitrogen through the water. Constant stirring of the bath caused the partial pressure of oxygen to slowly return to approximately 100 mm Hg over a period of five hours. The pH of the water was then changed by slowly adding small aliquots of either. 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
