igO SMITHSONIAN MISCEIXANEOUS COLLECTIONS VOL. 53 



P." 





St. Charles 



Bloomingtou 



12 ' Blacksmith 



Jle- 



ters 



Spence ^ 



Langston 



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ZEISZJ 



9^7 



94 29 



i66 I 51 



317 



1320 j 402 



483 



75 



246 



<3° 9 



Bluish grav litiiestoue 



Massive bedded limestone 



Thiu bedded limestone 



Thin bedded sandstone 



Arenaceous limestone 



Gray and bluish gray limestone 

 with a few bands of shale 



174 ' Dark arenaceous limestone 



Thin bedded limestone and shale 



I I 



Brigham 



498 1 152 



1232 ! 376 



Argillaceous shale 



Thick bedded limestone 



Brown quartzitic sandstone 



Pig. 7— Hlacksmilli Fork Section 



