Fig. 107. (S. 1–3.) Two beautiful white spear-heads. Found near the Cahokia group of mounds. Material: flint. H. M. Braun’s collection, East St. Louis, Illinois.
Fig. 108. (S. 1–2.) Rotary spear-head. S. Van Rensselaer’s collection, Newark, New Jersey.
Fig. 109. (S. 2–3.) Arrow-head, with stem unusually long. Phillips Academy collection.
Fig. 110. (S. 3–4.) This Figure represents twenty-nine chipped objects from the Willamette Valley, Oregon. Many beautiful specimens have been found in this valley. It has produced possibly as many objects as any given area in the world. Material: the usual semi-precious stones. A careful study of these and other pictures of Willamette Valley types will acquaint readers with the fact that there is an endless variety of form. And yet the treatment is such that the chipped implements from this valley can be recognized and described as differing from others in any part of the world. H. P. Hamilton’s collection, Two Rivers, Wisconsin.
Fig. 121, Wisconsin types, Fig. 110, Willamette Valley, Oregon, and Fig. 112 should be compared by readers. These plates will emphasize the difference in form. Some of these are classified under “Stems contracting from base,” others belong in the division, “Stems expanding from base.” Yet even in the same class there are to be observed certain differences, for the stem is not always the essential feature.
Fig. 111. (S. 1–2.) Points from Idaho. C. Albee’s collection, Red Rock, Montana. Note the angular sides in the object in the upper row, second from the right.