Certain of our brothers, led by Brother Audric, make parchment from the skins of sheep, goats, and calves. It may take 200 to 300 sheep to make the pages of a large Bible. The brothers begin by washing the animal skins and placing them in lime to remove the hair and fat. Next, they stretch the skins on a frame. When the skins are dry, the brothers rub them with chalk and pumice to make a smooth, white writing surface.