A short encyclopedia entry defining felt as a stuff of wool, or wool and hair, that is neither spun nor woven but made by fulling with lees and size and shaping on a block with fire and water. It names the usual fibers (beaver, camel and coney hair, lamb's and sheep's wool) and notes that felt is used chiefly for hats. It describes the felt for a hat as formed into a funnel-shaped piece before being shaped, and refers readers to the entry HAT.