An illustrated educational booklet issued by the Corticelli Silk Mills of Florence, Massachusetts, on the origin, culture, and manufacture of silk. It covers the legendary discovery of silk in China and its spread west, silk culture attempts in America, and the life cycle of the silkworm from egg to moth. It then describes reeling silk from cocoons and the mill processes of winding, doubling, spinning, twisting, water-stretching, dyeing, finishing, and spooling. It is illustrated with photographs of silkworms, cocoons, and mill machinery, and ends with promotional pages for the company's Teachers' Silk Culture Cabinet, chart, and cocoon boxes.