IN RAIN AND SNOW, IN THE UNITED STATES. 129 



Diagram 2— TYPE-CURVES OF THE ANNUAL FLUCTUATION IN RAIN FALL. 



J. F. M. A. M. J. J. A. S. O. N. D. J. 



Type I. 



Type II. 



Type III. 



Typo IV. == 3= : 



Type VI. 



Type VII. 



TypeVm. 



17 July, 1871 



Atlantic sea-coast, 

 Portland to Washington. 



Hudson River Valley, 



Vermont, Northern and 



Western New York. 



Upper Mississippi, part 



of Iowa, Minnesota, and 



Wisconsin. 



Ohio River Valley, 



Western Pennsylvania 



to Eastern Missouri. 



Indian Territory and 

 Western Arkansas. 



Lower Mississippi and 



Red Kiver; part of 



Kentucky. 



Mississippi delta, and 



coast of Mississippi 



and Alabama. 



Atlantic sea-coast, 

 Virginia to Florida. 



