An English translation by Nicholas Geffe of Olivier de Serres' French treatise on raising silkworms, printed in London in 1607. It covers planting, grafting and pruning mulberry trees, housing and feeding the worms, choosing and hatching the seed (eggs), diseases and remedies, spinning, saving seed, and reeling silk from the cocoons. It adds a section on making linen-like cloth from white mulberry bark, and Geffe's own discourse on whether England can produce abundant silk. It opens with a dedication to King James I and commendatory verses by Michael Drayton and others. Woodcuts show rearing rooms, a silk-reeling engine, and moths and cocoons.