Article by Edward F. Worst describing a sixth-grade project at the Yale Practice School in Chicago in which pupils grew flax and processed it by hand into thread and cloth. It covers sowing, harvesting, removing seed, retting, breaking, hackling, brushing, spinning, warping and preparing the loom, with shop-made apparatus such as the brake and hackle. Four photographs show the seed removal, pounding/breaking/hackling, brushing and spinning stages.