1883 

 MEAN MONTHLY DISCHARGES. 



IN CUBIC FEET PER SECOND, 

 OF THE FOLLOWING RIVERS: 



Niagara River, 

 Ohio at Paducah, near iU mouth 



M issouri at St Charles. 



Upper Mississippi, at Qrafton, 

 iust above the mouth of the Missouri 



(.To fact p. 15.) 



