3o5 



TRANS. ST. LOUIS ACAD. SCIENCE. 



divide the drainage is more irregular, the waters commonly ga- 

 thering into a number of streams tributary to Salt river and flow- 

 in* in a southeasterly direction ; but the first stream east of the 

 divide in Macon county — an important branch of Salt river — 



JBEVIER COAL t^CARBON COAL-- "COAL EXEK)SURE DROCK EXPOSURE 



PART OF MACON COUNTY MISSOURI 



SHOWING ROCK EXPaSURES AMD, THE DISTRIBUTION OF COAL SEAMS 



agrees in behavior v ith the Missouri drainage rather than the 

 Mississippi, and maintains approximate parallelism therewith 

 half way through, and for 20 miles north of, the tract mapped. 



