Fig. 122, from Dr. Barnard’s collection, Seneca, Missouri, illustrates the best of the small Missouri points. Dr. Barnard’s collection is from the outskirts of the Ozarks, where the art is superior to the cave art of the Ozarks proper. The points found throughout the buffalo country do not vary greatly, although it is possible to distinguish such points as these from those of Texas. Fig. 105 represents Pennsylvania specimens from Mr. Deisher’s collection, and Fig. 132, more of the interesting Mississippi Valley spear-heads from Mr. Reeder’s exhibit. Figs. 125 and 147, Mr. L. Gibson’s collection, Schenectady, New York, give two abnormal points, such as are occasionally found. I do not think that such were arrow- or spear-heads, but must have been knives. It would be impossible to shoot them with much accuracy. They are always interesting, and I shall have more to say regarding them later. Figs. 116 and 117 present two plates from the collection of Phillips Academy, Andover, Massachusetts. These were found generally throughout the Ohio Valley. Careful study of them will acquaint readers with several points. First, they are of the best workmanship. Second, they are almost entirely of flint ridge or Tennessee nodular flint. Third, a large proportion are rotary. Fourth, the barbs are unusually chipped and fine. Fifth, the bases are straight, concave, and convex. Sixth, what is more important than either stems or bases, the striking feature in these is the barbing and notching. The tangs and shoulders are the prominent points in these three plates—not the stems—which are of secondary consideration. For example, in Fig. 116 the shoulders and tangs are everything, and this will be found to be true of many flint implements. Consider Figs. 97, 110, and 133 from the Columbia River Valley. In some of these the stem is of importance, in others the stem is secondary to the barbing. Fig. 114 presents typical Pennsylvania specimens from Mr. Deisher’s collection. The central one has expanded shoulders and represents a type more common in Pennsylvania than elsewhere. Fig. 115 is a plate of spear- and arrow-points from George Charters’s collection, Greene County, Ohio. I wish to call attention to those seven specimens on this plate which are marked “S,” and to refer to them in considerable detail. [Illustration: FIG. 115. (S. 1–3.) Projectile points. George Charters’s collection. ] [Illustration: FIG. 116. (S. 1–3.) Beveled spear-heads, chipped in the form known as “rotary” points. These are selected from the collection at Andover. They come from various portions of the Mississippi Valley, and are all splendid examples of the skill of the master worker in stone. Note particularly the differences in the notches and tangs. The central one to the right has notches expanded. To make these is extremely difficult, and although white men are able to make flint implements, the working of the expanded notches is a lost art. ]