The Application of Geophysical Oscillographs to Multiple Recordings in Physiology

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Abstract
Galvanometers developed for geophysical investigations are characterized by the qualities of sturdiness, sensitivity, and good frequency response. The use of these oscillographs in physiologic investigations would simplify many instrumental problems and give the physiologist and biologist a convenient and useful tool for the simultaneous multiple recording of many physiological changes in either one or several organisms.