LEAF-FLINTS AND TOMAHAWKS. 47 



DRILLS. 



Related to the awls, there are some carefully chipped 

 drills, which differ from the awls in being thicker, longer, 

 less sharply pointed, more straight, and more uniform 



Fig. 18. Drills made from flint. Very slightly reduced. 



in width (Fig. 18). These have no widened base to be 

 used as a handle. Most of them show considerable 

 wear on the edges and the nature of this wearing is 

 such as to suggest that it may have been produced by 

 turning the instrument in a hole. The drilling observed 

 in some catlinite pipes, described farther on, may have 

 been made by means of these tools. 



LEAF-FLINTS AND TOMAHAWKS. 



Quite a number of large chipped flint pieces were 

 found which may have served as hoes or spades for 

 cultivating the soil and for digging in the ground (Figs. 

 19, 20). Only two of these specimens were found en- 

 tire. One was six inches long, three and one half 



