A 1911 English translation of Henri Lemaire's two practical treatises for the Nottingham lace trade, published by Howitt & Son. The first part covers independent bar draughting for Valenciennes lace made on the Levers machine: twists, nets, fronts, back edges, spots, gimped fronts and draughting paper. The second part, The Twisthand's School, describes the machine's parts, beams, Jacquard, droppers, sleys and bars, and gives set-out and running instructions. It has many hand-drawn draughts, thread-path diagrams and photographs of finished lace.