EXPLANATION O-F PLATE VIM. 



Progressive Stages of Shaping, Benton Flakk Series. 

 (One-half actual size.) 



The cobblestone passes iuto the nucleus; the larger flakes by simple alterations of 

 the edge become specialized tools. 



A. The cobblestone, natural state of material used; specimen from a Benton site, 

 one of a group of five similar stones, some of which had been flaked and marred 

 by blows. 

 B and B' . Nucleus. Opposite sides of a faceted cobblestone flaked from the usual 

 points. If flaked in the order of the letters a h c d the first points subjected 

 to blows yielded the small flakes a and 6 wliich represent designed products 

 but fiilures to attain proper size for convenient use or further shaping, and 

 therefore rejects of implement making. 

 c A successful flake, the characteristic blank for the smaller notched implements. 

 c' Reject; discarded after one notcb had been worked in the lateral edge. 

 c" Completed form having both notches worked and moderate degree of grinding 

 at the edge. 

 d A successful flake; the form commonly worked iuto a celt. 

 d Reject; long margins partly worked. 



d" Reject similar to d'; edge also flaked into alignment, an unusual procedure. 

 d'" Completed form; sides finished with moderate degree of battering; no grinding 

 m this case, as edge is strong and iiearly in proper alignment with plane of 

 implement. 



