An encyclopedia article on wool from the sixth edition of the Encyclopaedia Britannica. It covers how wool differs from hair, how fleeces are sorted and graded, the regions most prized for wool, and the history of the Society for the Improvement of British Wool founded in Edinburgh in 1791 under Sir John Sinclair. It closes with a short note on early woollen manufacture in Britain and a section on Edmund Cartwright's machine for combing wool, described by figure letters.