An 1889 encyclopedia article describing the machinery used in 19th-century American felt hat manufacture, covering both fur hats and wool hats. It follows the process from fur preparation and blowing, forming, hardening, sizing, fulling and stiffening through stretching, blocking, pouncing, ironing and finishing. Machines are illustrated with numbered engravings (Figs. 2295-2316), many credited to R. Eickemeyer of Yonkers, N.Y.