An International Correspondence Schools instruction paper (Part 1 of Silk Throwing, 1924) covering the preparation of raw silk into thrown yarns. It compares throwing with spinning, describes organzine and tram yarns and their twist, and covers receiving, weighing, opening, storing, examining and sorting bales of raw silk. The main section covers soaking: soap and oil solutions, making up bundles of skeins, soaking tubs and equipment, and a soap-slicing box. It ends with examination questions and a supplies advertisement.