REPORT ON FORESTS. 



153 



little effect upon the rate of its discharge. The following table 

 shows the greatest and least rate of discharge on various streams 

 and the percentage of catchment area covered with forests : 



Sudbury, Mass., .... 

 Croton.West Branch, N. Y 

 Ramapo, N. J., . . 

 Wanaque, N. J. , . . 

 Wanaque, N. J., . . 

 Pequannock, N. J,, 

 South Branch, N. J., 

 Rockaway, N. J., 

 Musconetcong, N. J. 



Paulins Kill, N. J., 



Swartswood Lake, N. 

 Pequest, N. J., 



Tohickon, Pa , 

 Neshaininy, Pa., 

 Perkiomen, Pa., 

 Hackensack, N. J., 



CATCHMENTS LKSS THAN 200 SQUARE MII<ES. 



Flood Flow in 



Catchments Per cent. Cubic Feet per 



in Square of Area in Second per 



Miles, Forest, Square Mile, 



78 14 41.4 



20 56 54.4 



160 75 66. I 



loi 75 48.9 



11 85 99.0 



48 78 1 15.0 



67 30 113.0 



119 82 43.0 



130 30 45-0 



36 85 64,0 



17s 27 26.0 



126 27 54.0 



16 22 65.8 



158 18 13.0 



83 18 9.6 



Z^ 18 18.7 



2 . 25-3 



102 28 55,3 



139 7 41-4 



152 25 34.9 



IIS 60 • • 



Lowest Flow in 

 Cubic Feet per 



Second per 

 Square Mile, 



0.036* 



0.020 



0.140 



0.130 



0,170 



O.OOI 

 0,009 

 0,050 

 0.190 



CATCHMENTS OP 200 TO 2,00O SQUARE MILES. 



Concord, Mass 361 



Charles, Mass., . 

 Housatonic, Conn., 

 Croton, N, Y., . . 

 Passaic, N, J. , . . 



215 

 790 



339 

 797 

 822 

 879 

 276 

 216 



Raritan, N. J., 



South Branch, N. J., . . 

 Great Egg Harbor, iST. J., 



Schuylkill, Pa 1,800 



Potomac, Md., 920 



Greenbrier, Va., 870 



Shenandoah, Va 770 



Neuse, N. C, 1,000 



52 



12,3 



I9.5 



0.17 

 0.20 

 0.17 



015 

 0.19 

 0.19 

 0.14 



0,27 

 0,17 

 0,62 

 0.12 

 0,17 

 0.19 



* This has since fallen lower because of the construction of artificial reservoirs, causing increased 

 evaporation. 



