Part XI of a series on the textile industry at the 1873 Vienna Exhibition, by Dr. H. Grothe. It describes machines for testing the strength of woven fabrics, chiefly Professor Beylich's "bristometer" (friction and wear testing) and the Perreaux de L'Orne tension tester. It then turns to knitting machines, surveying German, French and other exhibitors and giving a detailed mechanical description of Ernst Saupe's knitting loom, illustrated with engraved figures.