A 1909 English-language survey of Japan's sericultural and raw silk industry by the director of the Imperial Tokyo Sericultural Institute. It covers the history of silk-raising, the industry's present state with production statistics by prefecture, government support, schools and associations, and mulberry cultivation. It also covers silkworm rearing, seed production, silkworm diseases, reeling and re-reeling machinery, conditioning of raw silk, sales and export, wild silkworms, and a concluding assessment of the industry's prospects. Illustrated with maps, photographs of institutes, plantations and rearing houses, and many statistical tables.