This bulletin covers a wide range of techniques in the silk reeling industry. Details are given in each chapter on the handling of fresh cocoons, drying and storage of cocoons, cocoon boiling and reeling, raw silk-reeling and and finishing, water quantity and quality, utilization of by-products and maintenance of the machinary used. The continuous improvement and effective dissemination of the technology for the silk throughout the world. An appendix illustrated the silkworm processes from larva to final production of silk.