3 2 4 



THE HUMAN SPECIES 



might induce man to hammer it with stones into definite 

 shapes. But how should this come about when it occurred as 

 copper ore combined with other metals or metalloids, as a 

 carbonate, arsenate, chloride, or iodide? Lucretius, who 

 pondered on all things, thought that the art of working metals 

 first came about after some ancient forest conflagration had 



Weapons and implements of the Bronze Age (Hungary and Bohemia). 



FIG. 150. FIG. 151. FIG. 152. FIG. 153. FIG. 154. 



FIG. 150. Bronze sword. FIG. 151. Bronze spear-head. FIG. 152. Bronze lance. 

 FIG. 153. Narrow chisel. FIG. 154. Flat chisel. (Homes.) 



reached a place where there were ore-bearing strata and 

 caused them to melt Struck by the lustre of the solid mass, 

 man drew it out, and thus discovered the art of casting bronze. 

 Later on he learnt how to hammer and polish the bronze, and 

 so to form his first metal tools, hatchets, hammers, nails and 

 chisels (Fig. 156). 



