80 



STONE ART. 



[eth. axn. 13 



wheel. Similar forms, except with flat instead of convex upper sur- 

 faces, are known to have been used as adzes, but these have no marks 

 of such use. The length ranges from 2 to 8 inches, but most are small. 

 The type is shown in figure 59, of brown flint, from a grave in Alexan- 

 der county, Illinois. 



K. Similar to last, except that the sides come to a point at the top ; 

 length, 3J to 9 inches. Very few of either pattern are above 5 inches 

 long, the larger ones being mostly of flint (figure 60, of sienite, from 

 Warren county, Ohio). 



i. Sides concave, top narrow. Nearly every specimen has the upper 

 portion pecked rough; on& from Bradley county, Tennessee, and an- 

 other from Mississippi county, Arkansas, are entirely polished. The 

 latter has the scraper-form edge to be described later and is of excep- 

 tionally large size; it measures 5J inches, being the only one-exceeding 

 5 inches in length. 



M. Top flat, round, or pointed ; the blade usually begins a little below 

 the middle, and is perfectly smooth in every case; in some the blade is 

 not over an inch in length, probably reduced by continual sharpening. 

 They may have been scrapers, though they do not have that form; if 



