부산대학교 도서관

Disturbances of water and electroiyte flux across the ultraviolet irradiated skin of Rana temporaria were investigated with the aid of sodium-24 and potassium-42. The radioisotopes were added to the water in which the animals were maintained. The equipment and procedures are described. From the results it was concluded that the lethal effect on Rana temporaria of ultraviolet light is accompanied by negative transcutaneous sodium and potassium flux which is essentially due to an increased outflow. Administration of sodium, lower temperatures, or exposure to visible light reduced the lethal effect. (C.H.)