Volume III of Fred Bradbury's technical treatise on worsted preparing and spinning, covering the drawing and spinning stages. It treats gill and drawing boxes, knocker-off and lifter/builder mechanisms, principles of drafting and twist, reduction and production calculations, differential bobbin winding (cone drawing) and differential gear mechanisms, French drawing, flyer, cap, ring and mule spinning, mechanical doffers, twisting and fancy yarns, and warp winding and warping. The text is heavily illustrated with machine diagrams and worked arithmetic examples and tables, and includes a historical account of the spindle, distaff, jenny, mule and flyer.