Volume I (Third Edition) of Fred Bradbury's technical textbook on worsted manufacture, following wool from the greasy fleece to the clean, carded sliver. It covers sheep breeds and wool sources, the effects of climate and pasture, impurities, chemical reactions, fibre structure and felting, classification and sorting, then scouring, washing and drying machinery. It goes on to gilling and drafting calculations, oiling, opening and burring machines, and carding, including card clothing and the functions of the card rollers. Illustrated with many machine diagrams, micro-drawings of wool fibres and tables.