THE HUMAN SPECIES 



the many pictures on the walls of the Grotte des Vezeretales in 

 France one was found showing a hut, built of stakes and pro- 

 vided with a roof, showing that man at that period was able 

 to do carpenter's w r ork with his primitive tools. Like certain 



FIG. 161. Tree-dwelling from Southern India. (Homes.) 



savage races of to-day (the Hottentots, Gallas, Somalis, and 

 Terra del Fuegians), he could cut off the stronger twigs or thinner 

 branches, place them crosswise in the earth, fasten them at the 

 top, and intertwine brushwood between them, and then cover 

 the whole structure with hides. No doubt it was much simpler 



