Experiments on the potassium absorption of the erythrocytes of Rana esculenta and Rana temporaria after bleeding and in hypertonic plasma.

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Summary.It is shown that the erythrocytes of ranae esculentae and temporariae behave very much as those from pigeons.The blood taken from the neck of the frogs shows a marked, and in some cases a very rapid absorption of potassium from the plasma. If the frogs are cooled (2°) for an hour before the bleeding the erythrocytes show no spontaneous absorption.Addition of hypertonic sodium chloride solution is followed by a potassium absorption of the red blood cells.