RAINFALL AND EVAPORATION 



here the average annual rainfall is only 

 5.5 inches. These figures clearly show 

 what a difference the intervention of a 

 mountain range may make upon the rain- 

 fall of two places only a few miles apart. 



SHOWING DIFFKRENCE IN RAINFALL OF TWO PLACKS SITUATED O.V 

 OPPOSITE SIDES OF A MOCVTA1N RANGE IN UTAH. 



105 



