Abstract
The method employed is based on the principle that the amount of heat, radiated by circulating blood led through a tube, varies with the volume-flow. This heat is measured by means of a thermopile placed in the course of a stream of water exposed to the radiation of heat from the blood. The volume-flow (E. M. F.) is recorded potentiometrically on smoked paper with the method described by Gesell and Hertzman. 1
The accompanying figure shows the effects of hemorrhage (50 cc.) on the volume-flow of blood through the carotid artery of a dog, followed by reinjection of the blood plus 10 cc. of 6 per cent dextrose solution.
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