PLATE Vllf 



FIG. 1. A meandering stream. The Mis- FIG. 2. A stage in thedevclop- 

 souri River. Scale, about 2 miles per ment of a meander. Sdn-ll 

 inch. (Marshall, Mo , Sheet, U. S. Geol. River. Scale about 2 miles 

 Surv.) per inch. (Butler, Mo , Sheet, 



U. S. Geol. Surv.) 



FIG. 3 A plain in old age. Scale, about 2 miles per inch. (Abilene, K.-m 

 Sheet, U. S. Geol. Surv.) 





