GUSTAV THEODOR FECHNER
GUSTAV THEODOR FECHNER (1801-1887), physicist and psychophysicist, born at Gross-Särchen, in Lower Lusatia; became professor of Physics in Leipzig, but afterwards devoted himself to psychology; laid the foundations of the science of psychophysics in his "Elements of Pyschophysics"; wrote besides on the theory of colour and galvanism, as well as poems and essays.