TABLE V-PRECIPITATION IN INCHES. 



TABLE VI-TOTAL MEAN PRECIPITATION AT ORONO. ALT. 150ft. 



A study of these tables brings out several important facts. 

 It will be noticed that the greatest rainfall is coincident with the 

 growing period, June-September, a fact very significant in the 

 development of the flora. Upon this and its daily distribution 

 is the presence of the mesophytic undergrowth, which extends 

 far up toward the limits of the Krummholz, only explainable. 

 While the precipitation is frequent and high, its retention is by 

 no means complete. The thin residual soil, allowing the water 



