Fig. 716. (S. 1–2.) Cup-stone. Collection of Logan Museum, Beloit, Wisconsin.
On such a stone as is illustrated fifteen nuts could be placed at one time and crushed by a single blow of a heavy, flat slab. If they used cup-stones for this purpose, they would naturally employ stones in which there were many cups rather than the average stones containing one or two cups. If so used, the work proceeded rapidly; one person crushing and two others placing the nuts in position. As the stone weighs no more than six or seven pounds, it could be quickly raised and the contents dumped into a receptacle.
Fig. 717. (S. 1–2.) Skull from a Florida shell heap. (See page 351.) Peabody Museum collection, Cambridge, Massachusetts.
Fig. 718. (S. 1–1.) Grooved stone axe from Allington, Washington County, Wisconsin. Collection of the Milwaukee Public Museum.
Fig. 719. (S. 1–5.) A group of bird-stones, boat-shaped objects and other problematical forms. J. T. Reeder’s collection, Houghton, Michigan.
