HENWOOD, WILLIAM DORY English mining geologist, was born at Perron Wharf, Cornwall, on Jan. 16, 1805. He was assay-master and supervisor of tin in the duchy of Cornwall from 1832 to 1838. In 1840 he was elected F.R.S. In 1843 he went to take charge of the Gongo-Soco mines in Brazil; afterwards he proceeded to India to report on certain metalliferous deposits for the Indian Government. The mineral Henwoodite was named after him. He died at Penzance on Aug. 5, 1875.