242 flatuve's 



through the sand and gravel of the glacial 

 drift. This salt water is pumped up and evap- 

 orated, leaving the salt forming one of the 

 important industries of that region. All of 

 the rivers from the Ohio eastward tell the same 

 story, which is that at some remote period the 

 land was much higher above the level of the 

 sea than it is to-day. The bottoms of many 

 of these old river beds are lower than sea-level, 

 but as they were made by running water they 

 must have been at one time above that point. 



There is abundant evidence that the earth 

 sinks in some places and rises in others. 

 Along the ridges of some of the eastern moun- 

 tains are found in great abundance the 

 products of the bottom of the ocean. These 

 evidences show that at some period, when the 

 mountains were formed, a great convulsion of 

 nature raised the bottom of the ocean to thou- 

 sands of feet above its level. Evidences of 

 this exist in various parts not only of the 

 United States, but of the world. 



You ask, If this erosion goes on and the 

 mountains and hills are carried down and 

 filled in to the low places of the ocean, what is 

 the final destiny of the earth that now appears 

 above the surface of the ocean? Evidently if 

 the earth should remain without further up- 

 heaval, at some time in the far, far future the 

 land would gradually wear down and be 

 carried off into the ocean and the ocean would 



