Explorer and miscellaneous writer, born in Edinburgh, son of Sir James Hall of Dunglass, a noted chemist and geologist; rose to be a post-captain in the navy, and in 1816 made a voyage of discovery on the coast of the Corea and the Great Loo Choo Islands, his account of which forms a fascinating and highly popular book of travel; during 1820-22 he commanded the Conway on the W. coast of South America, and his published journals covering that period of Spain's struggle with her colonies are of considerable historical value; "Travels in North America in 1827-28" is an entertaining record of travel; was also author of some tales, etc.; he died insane (1788-1844).