An 18th-century German treatise on silk manufacture, the eleventh essay in Johann Samuel Halle's series on the workshops of the contemporary arts. It covers the natural history of the silkworm, mulberry cultivation and raising of silkworms, reeling and throwing (organzine and tram) silk, and the looms and weaving of common silk fabrics. Fabrics treated include satin, gros de tours, moire, velvet and gold and silver brocades, with descriptions of drawloom operation, harnesses and pattern drawing. It closes with a supplement on silk dyeing, an explanation of the engraved plates of silk-making tools and machines, and part of the general index.