Installment of E. A. Posselt's serial on textile fabric analysis, covering how to determine the arrangement of warp and filling threads by color and yarn count. It opens with a discussion of color theory (primary, secondary and tertiary colors, contrast, complementary colors, harmony), then explains how to record color and count information on point paper when analyzing a sample. Worked examples include a worsted trousering and a black-and-white worsted suiting, with a plate of standard color-and-weave effect diagrams. It closes with a specification for a fancy worsted stripe trousering woven on a 13-harness fancy draw, giving warp dressing, reed, filling and finish.