D'ARSONVAL, ARSÈNE. - French physician, physiologist, and physicist, born at La Porcherie (Haute Vienne) on 8 June 1851, died there on 3 December 1940.
Introduced to physiology by Claude Bernard, he served as assistant to both Bernard and Brown-Séquard and taught physiology at the Collège de France. He studied and introduced into therapy high-frequency currents (d’arsonvalization). Named after him are the rectangular-coil galvanometer, a compensation calorimeter, and several other instruments commonly used in electrophysiology. The French consider him the founder of biological physics.
D’A. appears to have been an agnostic: he regarded “scientific spirit” and “religious spirit” as two independent variables that could coexist without interference.