Opening the jackknife he cut from one of the skins a large circular piece, and at regular intervals near the edge of this made small slits. Then from the edge of a skin he cut a long, narrow thong, and proceeded to thread it through the slits. This done he tightened the thong, puckering the edge of the circular piece of skin until it assumed the form of a shallow bowl perhaps fifteen inches wide. This he set into a snow block in order that it might set firm and retain its shape. This was to be his Eskimo lamp.