A 1931 Melliand Textile Monthly article by T. Nelson explaining how to design for leno jacquard looms. It describes the Crompton & Knowles leno jacquard with its doup, ground and easer harness sections, how ends are drawn through the harness, and how the design must be split into three sections for doups, body and easers. It works through hook and needle allocation on a 600 jacquard and an English 400 machine, with an example leno fabric and its design grids.