BIGSBY, JOHN JEREMIAH (I 792-1881), English geolo gist and physician, the son of Dr. John Bigsby, was born at Not tingham on Aug. 14, 1792. Educated at Edinburgh, where he took the degree of M.D., he joined the army medical service, and then, in 1817, was stationed at the Cape of Good Hope. In 1822 he was appointed British secretary and medical officer to the Boundary Commission, and carried out extensive and important geological researches, contributing papers to the American Journal of Science and other scientific journals. He returned to England in 1827. During the last 20 years of his long life he was continually at work preparing tabulated lists of the fossils of the Palaeozoic rocks. His Thesaurus Siluricus was published with the aid of the Royal Society in 1868 ; and the Thesaurus Devonico-Carboni f erus in 1878. In 1877 he founded the Bigsby medal to be awarded by the Geological Society of London. He died in London on Feb. so, 1881.