Guillaume Amontons, a French physicist, born in Paris, Aug. 31, 1663, died Oct, 11,1705. He was deprived of hearing in early life by disease. It is said that he refused to make any effort to relieve his malady, and devoted himself diligently to the study of geometry and mechanics. He wrote several important treatises upon scientific subjects, and constructed some new instruments in physical science. He conceived the idea of communicating between distant points by signals to be observed through magnifying glasses, and made successful experiments before the royal family, though the use of the signal telegraph was not introduced till nearly a century afterward.