Josephine E. Estes explains four formulas (A-D) for developing several true all-over designs from a single four-harness overshot threading, so weavers need not rely on trial and error. Each formula is explained step by step using patterns from Atwater's Shuttle-craft Book, including Honeysuckle, Solomon's Delight and Morning Glory. A final section adapts Formulas A, B and C to four-block Summer and Winter patterns on six harnesses, using the Wheel and Star pattern. Illustrations 1-5 show the drafting steps and resulting drawdowns.