420 



INDEX TO THE STEATIGRAPHY OF NORTH AMERICA. 



part of Cambria County, to 1,400 feet in the western side of the Broad Top syncline, and to 

 2,133 feet in Sidehng Hill, Pa. If these measurements are correct, it apparently reaches its 

 culmination in Sideling HiU and decreases eastward to 1,850 feet in the Meadow Branch Moun- 

 tains. 



K-L 16-17. MICHIGAN. 



According to Lane 

 tabulated as follows : 



^^ the Carboniferous of Michigan consists of the formations 



Carboniferous formations of Michigan. 



