Part XXII of Dr. H. Grothe's series on the textile industry at the 1873 Vienna Exhibition, covering machinery for the preliminary treatment of flax, hemp and jute. It describes flax seeding rollers by Turner of Ipswich and several breaking machines (Collyer, Lawson, Narbuth, Luft, Wameck, Mure, Bohm and a Portuguese model), explaining their mechanisms, including the "pilgrim's step" motion. Illustrated with engraved figures and diagrams of the machines.