Part VIII of a series on textile industry at the 1873 Vienna Exhibition, by Dr. H. Grothe, covering wool-spinning machinery exhibited by M. Celestin Martin of Verviers, Belgium. It describes his breaking cylinder, a wool-opening machine with toothed drum, grille and doffing cylinder (400 lb of wool per hour), and a self-acting oiling machine that distributes oil and water onto the wool (about 3000 lb in twelve hours). Two engineering line drawings illustrate the opening and oiling machines.