ARROWPOIXTS, SPEARHEADS, AND KNIVES. 



931 



pointed. The iiotclies which have formed the barbs have been made in 

 theLase and not in the edge. They are V-shaped and are ])eri)endicu- 

 lar to the i)Uine of the implement. The barbs continue on the line ot 

 the outside edges, and the widest i)lace is across their extreme points. 

 The material is reported as pale-brown flint, bnt it has the peculiarity 

 of a brilliant shining luster resembling the brightest ])atina. Whether 

 it is reallj' patina, or only vitreous material, the author has not been 

 able to determine. The specimen is too precious to be broken in order 

 to show its interior. 



Fig. 178 is barbed and, therefore, belongs to this class. It is broad- 

 est near the point. Its edges are of irregular convexity; there have 

 been some others of much the same form as this, but their edges have 

 been straight where this is convex, aiul instead of a curve there was 

 a distinct angle, but these are considered only the peculiarities of the 

 workman and to have served no particular end, while their rarity will 

 not permit their being assigned a division by themselves. 



Fig. 179 is one of the beautiful jiale-greeu jasper specimens ot 

 diminutive size, delicate stem, and long, projecting, finely pointed 

 barbs, peculiar to the Pacific coast, coming mostly Irom Oregon. It 

 appears much smaller than its dimensions given in the legend would 

 indicate. This is caused by its delicacy and fineness. Italy produces 

 the only arrowpoints which compare with those of the Pacific coast 

 in these fine qualities. The reader is referred to Plate 36 for other 

 specimens. 



DIVISION IV— PECULIAR FORMS. 



This division includes those specimens which have such peculiarities 

 as distinguish and separate them from the standard tvpes. If the 

 distribution of these specimens was general, or if they were found in 

 numbers approximately equal with the others, they would themselves 

 become standard types and each require a division of its own. It is 

 because they do not belong to standard types, pnd are restricted in 

 number or locality, that they are assigned to this division. 



CLASS A. — BEVELED EDGES. (Plate 37.) 



The blades of the ordinary arrowpoint are usually chipped from both 

 sides so that the edges are formed on the central line, and a cross sec- 

 tion is elliptical. This Class A is peculiar in that the chipping by 

 which the edge is formed is all done from one side, and the edge is 

 thrown or beveled to the plane of the other side. A cross section will 



