Fechner

Fechner, Gustav Theodor (1801-1887), a German physicist and psychologist, studied physics at Leipzig, and became Professor of Physics in 1834. In 1828 he published a Handbook of Experimental Physics, and made researches into the theory of colour, and in the nature of galvanism upon which he published a work in 1831. In 1860 appeared his Elements of Psychophysics. He was also the author of essays and of poems.