>4 SOCIAL EVOLUTION 



make this very important step in progress. Fire was 

 lit-nrnilly known and could be artificially kindled. 'Flu- 

 food, which had been mainly uncooked vegetable and the 

 raw flesh of fish and animal in the paleolithic culture, 

 was in this new period largely cooked and obtained by 



!'!(, t UK 4.T NiMilitliir r.tt 



stock breeding and tillage as well as by fishing and the 

 chase. This was a most important gain, for it meant 

 a larger and more certain food supply. And the food 

 supply is always a serious problem among primitive 

 jn-oples. The men of the polished stone age made im- 

 plements of diverse type, not rough and irregular like 

 their predecessors, but ground smooth and shapely. 44 

 They were also skilled in spinning and weaving and had 

 considerable success in making pottery. 45 All these arts 

 were foreign to the men of the rough stone ages. Neo- 

 lithic men left imposing monuments in the form of gi- 

 gantic upright stones, reminiscent of early religious rites 



4 See figure 42. .-, See figure 43. 



