Dryad Leaflet No. 138 introduces wool for hand spinners and weavers. It covers the structure and properties of the wool fibre, carbonization of vegetable matter, and a survey of British sheep breeds grouped as long wools, short wools and mountain sheep, with notes on suitability for hand spinning. A second article, on wool-sorting for handicraft workers, explains fleece grading into matchings and gives practical steps for sorting a fleece, illustrated with photographs of sheep and of sorters at work.