HYDROLOGY OF NEW YORK 



99 



1879 1880 1881 



Storage 14.91 IS. 57 12.33 



Growing 8.44 10.05 7.38 



Replenishing 6.38 S.61 9.56 



Total 29.73 37.23 29.27 



In 1881 the runoff of streams in the vicinity of Cooperstown 

 probably did not exceed 7 inches. The Cooperstown record is 

 considered one of the best long records in the State. 



At Geneva the mean precipitation for twenty-five years, 

 between 1850 and 1893, inclusive, is 30.86. In the period from 

 1883-1888, inclusive, the precipitation at Geneva was continuously 

 below the mean, as indicated by the following : 



1883 1884 1885 1S86 1887 1888 



Storage 9.38 10.43 5.61 10.02 6.70 10.48 



Growing 10.57 5.78 12.15 10.19 11.41 8.89 



Replenishing.. 5.76 5.85 6.35 7.18 4.07 S.22 



Total 25.71 22.06 24.11 27.39 22.18 27.59 



For the years 1887 and 1888, it is probable that streams in the 

 vicinity of Geneva did not flow to much exceed 2 to 4 inches on 

 the catchment ar'ea. 



At Glens Falls the mean precipitation for the years 1879 to 

 1898, inclusive, is 37.76 inches. The following is the record for 

 the minimum years, 1880-1884, inclusive : 



1880 1881 1882 1883 1884 



Storage 14.73 14.83 15.35 13.07 15.97 



Growing 4.61 5.15 9.37 5.01 7.31 



Replenishing ...10.38 S.08 6.49 10.11 6.37 



Total 29.72 28.06 31.21 28.19 29.65 



A study of runoff records shows that the precipitation of the 

 storage period largely controls the runoff for the year; hence, in 

 a»year like 1883, when the precipitation of the storage period 

 was only 13.07 inches, specially when such a year has been pre- 

 ceded by years like 1880-1882, inclusive, the runoff will certainly 

 be very low. Probably in 1883 it did not exceed, in the vicinity 



