Volume 1 of Roberts Beaumont's 1916 technical treatise on woollen and worsted manufacture covers fibres and wool substitutes, wool sorting, scouring and blending, and the construction of woollen and worsted yarns. It describes carding, condensing, spinning, twisting, combing, drawing and worsted spinning machinery in detail, with card clothing tables, machine sets, productive-power tables and yarn costing examples. It is heavily illustrated with line drawings, photographs and fold-out plates of mill machinery. The front matter also lists later chapters on weaving, looms and fabric design, which are not in this volume.