A Harper's Weekly article on James Lyall's positive motion loom, shown at the 1876 Centennial Exposition in Philadelphia. It explains how the shuttle is carried through the warp by mechanism below the threads instead of being thrown, which allows very wide looms and gentle handling of fine or weak fibres. It describes the 24-foot-wide loom in Machinery Hall and applications such as a Jacquard corset loom and a fast double-thread lock-stitch sewing machine. A second page has an engraving of crowds at the Lyall loom exhibit.