A 1922 article by John H. Reisner profiling Professor C. L. Chien, head of the sericulture department at the University of Nanking, and his work on raw silk production in China. It covers his research on silkworm diseases, feeding efficiency of nineteen silkworm varieties, and breeding, and describes his inventions: a cheap incubator, an egg-laying box for disease-free eggs, a rearing case, a cocoonage and a slide-drying oven. Two photographs show the egg-laying box and incubator; the article concludes on the second page with remarks on extension work among Chinese farmers.