Bul. 832, U. S. Dept. of Agriculture. PLATE XIV. 
B. P. R.—01284 
Fic. |.—SLOPE COURSE OF PIGEON CREEK DREDGED CHANNEL, NEAR CRESCENT, 
IOWA, 1917. (SEE TABLE No. 4.) 
B. P. R.—02420 
FIG. 2.—SLOPE COURSE OF MONONA-HARRISON DREDGED CHANNEL, NEAR 
ONAWA. IOWA, 1916. (SEE TABLE No. 4.) 
