hrdliCka] stone industries OF THE ARGENTINE COAST 



127 



Fig. 3. Anvil of limestone. U actual size.) Mar del Plata. 



under treatment (fig. 3). Some of the smaller of these scarred 

 stones are flattened on one face by use as grinding stones or mullers, 

 while others, as indi- 

 cated by the scarred 

 edges or peripheries, 

 were employed on 

 occasion as hammers, 

 as illustrated in fig- 

 ure 4. 



Numeroushammer- 

 stones were found on 

 the sites examined 

 and many of these 

 doubtless pertain to 

 the pebble-fracturing 

 work. This is indi- 

 cated not only by the 

 shape and surface 

 markings but by their 

 close association with 

 the anvils and the re- 

 fuse of pebble-work- 

 ing. In form they are cylindrical, discoid al, globular, ovoid, and 

 irregular. Nearly all are quartzite bowlders of suitable proportions 



or are made of that mate- 

 rial rudely chipped into 

 desired shape. Some are 

 battered at the ends merely 

 (fig. 5) while others are 

 pitted centrall}^ on the 

 broad faces and battered 

 and scarred on the ends, 

 1 ateral margin, or periphery 

 (figs. 6-8). The scarring 

 of the broad faces may be 

 in cases the result of use 

 as anvils. It is worthy of 

 special note that some of 

 the flatter hammers have 

 been used as rubbing 

 stones or mullers. 



Certain discoidal exam- 

 ples have beveled periph- 

 eries and these and others (figs. 9-12,) are identical with the stone- 

 working hammers of North America. All the above-described forms 



Fro. 4. Anvil-stone of quartzite. (| actual size.) Punta 

 Mogote. 



