293 
FORESTS, RESERVOIRS, AND STREAM FLOW 
Cubic feet per second. 
DIAGRAM SHOWING COMPARISON BETWEEN NATURAL AND CONTROLLED FLOW OF 
MISSISSIPPI RIVER BELOW THREE UPPER RESERVOIRS. 
Controlled Flowjat Pokegama. 
————|Computed Natural Flow jat Pokegama. 
aceon Computed Run off or Supply to 
- Reservoirs above Pokegama. 
7 K 
ie ; Py 
, \ 
M \ 
2000 / \ 
. Ei \ 
/ Pan 
1500 i ‘i QS 
7 9 
iY v N Note 
/ e \ V\ New, 
1000 i Pi Ney 
a XN me AY 
7 X\ \ 
A? YIN LA as 
500 FT - ~ i \ aNe ae te 
= \ 3 te = 
Ae Wa \ ea \ SS aaa 
0 ‘ L lia 
Mch, Apr. May June July Aug. \Sept Octs) | Nov Dec. Jan, Feb. Mch, 
1898 \ / 1894 
¥ f- 
\ / Negative run off 
\ Fa due to evaporation. 
