In these knives the cutting edge is usually along the right, rarely along the left side of the blade. A specimen in a Milwaukee collection has its blade ornamented with indentations. A small number of knives of peculiar forms are also to be seen in local cabinets. (See Fig. 597.) _Arrow- and Spear-Points_ 1. Leaf-shaped points. (Fig. 598, upper right-hand specimen.) These vary considerably in form and size, measuring from two to six or more inches in length. The average size appears to be about four inches. Some are oval in outline, others elliptical, lanceolate, or almond-shaped, the elliptical forms appearing to predominate. The points are not numerous. One or more specimens are to be seen in all of the larger Wisconsin collections. A small number of lanceolate forms in the Hamilton collection have the added feature of a median ridge which traverses either side of the blade from end to end. These range from two and three fourths to nine inches in length. 2. Stemmed, flat points. (Fig. 603—to the right. Fig. 598—lower central specimen.) These are of quite common occurrence in Wisconsin collections. These points are generally quite flat and of nearly uniform thickness throughout. The stem is of uniform breadth or tapers slightly toward its extremity. In the former form it sometimes expands at the base. The base is sometimes indented. In the Field Museum there is a fine specimen of this variety from Montello, Marquette County. It is nearly seven inches in length. [Illustration: FIG. 599. (S. 4–5.) Copper spear-points. Left to right: Merton, Waukesha County, Wisconsin; Colgate, Waukesha County, Wisconsin; Wayne, Barton County, Wisconsin. Milwaukee Public Museum collection. ] The blade varies considerably in shape and size. The smallest example known is one and three fourths and the largest about eight inches in length. The average size appears to be about three inches. A very small number have the face of the blade ornamented with indentations, usually arranged in two parallel rows. 2 a. Ridged points. (Fig. 595.) These and several of the succeeding forms are, strictly speaking, only well-established varieties of the preceding type. In the present instance they are distinguished by the presence of a median ridge which traverses both faces of the point, usually from tip to tip. This is not a frequent form. The largest specimen now known measures six inches in length. It is in the H. P. Hamilton cabinet and was found at Two Rivers. Professor T. H. Lewis obtained a specimen from a mound in Pepin County. Other specimens are in the Field Museum and Milwaukee Public Museum and several private collections. [Illustration: FIG. 600. (S. 1–2.) Copper spear-heads. Rat-tail type. Logan Museum collection, Beloit, Wisconsin. ] [Illustration: FIG. 601. (S. 1–3.) Copper spears and knives. Collection of S. D. Mitchell, Ripon, Wisconsin. ] [Illustration: