20i 



SEE-FURTHER RESEARCHES ON 



[April 24, 



and the continents growing larger. The mountains are formed by 

 earthquakes, and earthquakes are due to the sea, which thus makes 

 more and more land for the development of the higher forms of 

 life upon the globe. 



Fig 4 Relief Map of the United States. (From Frye's Complete Geog 



1 lU. 4. XV..1 ^1 -o..!... ^T^,,,-,toinc line hpPI 



especially how the great plateau we 



St of the Rocky Mountains has been 



