CLIMATIC CHANGES DUEING THE HISTORIC PERIOD. 



335 



which the Arab of our days could not venture to penetrate into the burning wastes, 

 before the arrival of the Hyksos they were even unacquainted with the horse or 

 the sheep, and possessed the laborious ox alone. 



The Egyptians of that remote epoch had not yet become the herd of serfs, such 



Fig. 99.— Isothermal Lines and Rainfall of Egypt. 

 Scale 1: 11.900,COO. 



27°Q0' 



32°20' E . of Greenwich 



Under 4 Inches. 



Over 4 Inches. 



150 Miles. 



as they are depicted on the bas-reliefs and wall-paintings of subsequent times. 

 They were still a light-hearted peasantry, lovers of feasts and the dance, ignorant 

 of the hateful arts of war. All this would seem to justify the hypothesis that they 



