390 



THE ICE AGE IR NORTH AMERICA. 



To the human dwellers in the Ohio Valley — for we have 

 reason to believe that the valley was in that day tenanted by 

 man — these floods must have proved disastrous in the extreme. 

 It is scarcely likely that they were often forecast. The whole 

 population of the bottom lands must have been repeatedly 

 swept away ; and it is far from being unlikely that in these 

 and other similar catastrophes in different parts of the world, 



Fig. 113.— Section of the lake ridges near Sandusky, Ohio. 



which characterized certain stages in the Glacial era, will be 

 found the far-off basis on which rest those traditions of a flood 

 that are found among almost all savage nations, especially in 

 the north temperate zone. 



