62 



CHIPPED IMPLEMENTS. 



Fig. 5. 



we have been considering. This specimen is nearly square in shape, two 

 of the angles being quite prominent, One of these has been the point of 

 the blade, the other, at which the bulb of percussion is very distinct, 



and to which the asphaltum still clings, 

 was inserted into the handle of the im- 

 plement. This knife is formed from a 

 flake presenting upon one side a single 

 plane of cleavage, and but two planes 

 are upon the other. The cutting edge 

 has been produced by minute secondary 

 chipping, which extends back less than 

 one-fourth of an inch. This subsequent 

 chipping is upon both sides, and gives 

 the margins a dull but quite straight 

 cutting edge. Long use may have 

 made them more blunt than when first 

 chipped, but if as sharp as when finished, 

 the specimen approaches closely that 

 class of implements known as "scrap- 

 ers," although the peculiar bevelled edge 

 of a true scraper is quite different from 

 that of this specimen. 



Chipped jasper and chert specimens, 

 of this general outline and of like dimen- 

 sions, occur frequently in the "finds" of the Middle and Southern States, 

 and are also common to Great Britain, where they have been described as 

 "horse-shoe" and "oyster-shell shaped scrapers." 



Fig. 5 represents a rudely-chipped jasper implement bearing some 

 resemblance to several different, well-worked forms of stone implements. 

 The under side presents a uniform surface; the upper, that shown in the 

 illustration, is ridged and somewhat chipped over the whole surface. The 

 ■ curved margin of one side is brought to a well-defined cutting edge, and is 

 quite sharp ; the opposite, straighter side is much more blunt and somewhat 

 fractured. Probably but the one side has been used. The base is still 



Flint knife. 



