Nellie Sargent Johnson explains a method for designing four-harness threading drafts by combining and varying three basic threadings: twill, herringbone (reversed twill) and rose-path. She covers balancing a draft around center threads, avoiding doubled threads on one harness when repeating, and building pattern blocks of different sizes, with odd-numbered blocks at the reversal point. Draft examples designed by her students Evelyn Lauer and Marie Copland (Hearts and Flowers, Snow-Flake, Electric Light/Copland's Fancy) are given with threading, lever/treadling directions for a Structo loom, and suggested uses and yarns.