Fig. 8. Diagram showing depth of the Delta (supposed, 600 feet); area 14,000 square miles; height of the river above the sea-level 215 feet at *; 
depth of river, supposed 80 to 200 feet in this diagram ; ditto of plains, supposed to average 264 feet ; area, 16,000 square miles. 
4 
c. Marine strata. 

*, Junction with River Ohio. 
a, a, Fluviatile stra 
eo 
S3 i = eee 22 
- == 2 be 2 2 . ; 
th ae fai fa? 23°! 
_ - & nN 
vn 2855 ee x 
PHet io of i 



ta of the plaing of the Mississippi; the slope of these plains is d ined t t to be about 1 foot in 10,000 a 
? Ld 

Direct distances :—Junction with (vert to Balize, 580 miles. Head of Delta to Balize, 180 miles. New Orleans to Balize, 70 miles. 
miles. ] 
Fig. 9. Transverse 0 
tical scale 1 inch to 1000 feet. Sotboattal scale 1 inch to 150 
on of the Mississippi, where it is 1500 feet wide and 100 feet deep, running in the midst of an alluvial plain 50 m wide. 
This diagram shows the section of slow-flowing rivers in general.) Vertical scale 100 feet f the inch. - 



Oo 

he a. dig bao #1 of water in the river during flood, ee is 26 feet E Artificial banks or apc feet bee 
> hove the. level of the nme Bocce 5 e d. Eo mi = a, 
. The level of _ in the d M1, mr, th 
The whole body of wi 
r in ap rie pail be in ee. so that even in cod t tine may a small per-centage of the water se alluvium in ‘the 
eam can escape over the banks. 

