294 



BUREAU OF AMERICAN ETHNOLOGY 



[BDLL. 60 



It is important to observe that when the thin leaf-like blade was 

 secured, the work of the quarry shop, the only work of the (juarry 



Limit of Sppcial 

 ization 



Fic. 1;";4. IjiiTiitoil doi^roo nf sppcializatinn of tho hlados, possililo liy pcrcnssioii witli 



Hat (lisccidal haiiiinors. 



shop so far as shaping: i^ concerned, was ended. The ]irocess and 

 tlie liannnei' had accomi)lished all that was asked of tliem. 

 It shouhl l)e stated in this place tliat a 

 limited degree of special- 

 ization is possible with 

 the hammerstone, e^'en 

 with quartzite and like tough materials. 

 It is possible with the aid of thin-edged 

 hammers to chip out shallow notches and 

 to work out eccentric outlines. Experi- 

 ment has shown that with the more brit- 

 tle stones much more can be done. On 

 the flint-shop sites of Georgia numerous 

 thin discoidal hammers are found. These 

 are made of the tougher portions of the 

 flint and are so light that they could not 

 have served for the roughing-out work, 

 and must have been devoted to secondary 

 flaking or to specialization work as shown 

 in figure 154. Figure 155 illustrates a 

 boldly shaped animal form found in 

 Tennessee, the large size and great thick- 

 ness of which precludes the idea that 

 it coidd have been shaped by pres- 

 sure. It was probably carried to completion as it now stands 

 by the hammerstone and by the free-hand stroke rather than by any 

 rest process. It may be possible that (he curiously specialized bhule 



Lid. 155. Largo, thiclv, animal- 

 shaped figure of flint, pi-ol)- 

 aldy special iaod e.xelusively 

 with the hammerstone. 



