Bui. 832, U. S. Dept. of Agriculture. 



PLATE XIV. 



" 





'/ 



-. - 



. ' * 



'^SS^^Er*. * : 



B. P. R. -01234 



Fig. I.— Slope Course of Pigeon Creek Dredged Channel, Near Crescent, 

 Iowa. 1917. (See Table No. 4.) 



Fig. 2.— Slope Course of Monona-Harrison Dredged Channel, Near 

 Onawa. Icwa, 1916. (See Table No. 4.) 



