DUCHENNE, GUILLAUME BENJAMIN AMAND (1806-1875), French physician, was born on Sept. 17, 1806, at Boulogne, the son of a sea-captain. He was educated at Douai, and then studied medicine in Paris until 1831, when he returned to his native town to practise his profession. Two years later he first tried the effect of electro-puncture of the muscles on a patient under his care, and from this time on devoted himself to electro-physiology and neurology, thereby laying the foundation of the modern science of electro-therapeutics. In 1842 he removed to Paris where he worked until his death. His greatest work, L'Electrisation localisee (1855), passed through three editions during his lifetime, though by many his Physiologic des motive ments (1867) is considered his masterpiece. He published over 5o volumes containing his researches on muscular and nervous diseases, and on the applications of electricity both for diag nostic purposes and for treatment. His name is especially con nected with the first description cf locomotor ataxy, progressive muscular atrophy, pseudo-hypertrophic paralysis, glosso-labio la ryngeal paralysis, and other nervous troubles. He died in Paris on Sept. 17, For a detailed life see Archives generaley de medicine (Dec. and for a list of his works the 3rd ed. of L'Electrisation localisee (1872).