192 



GEOLOGY. 



water m^ has the proper form, it is called an ox-how lake (Fig. 182), 

 or sometimes a hayou. The water-filled portions are not always bows 



RiVerBanhs 1Q85 

 Bars etc. 1385. 

 Rii/er Banks 1835-6 



Fig. 182. — Meanders and cut-offs (ox-bow lakes) in the Mississippi Valley a little 

 below Vicksburg. The figure also shows the migration of meanders down-stream, 

 and their tendency to increase themselves. (From charts Nos, 18 and 19, Mississippi 

 River Commission.) 



(Fig. 183, Osage River, near Butler, Mo.). Cut-offs, with or with- 

 out standing water, are of common occurrence along most rivers with 

 wide plains. Meandering is not confined to streams which are near sea- 



