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AN AMERICAN GEOLOGICAL RAILWAY GUIDE. (ILL.) 



53. Burlington limestone and Kinderhook group. 



54. Kinderhook group with a few feet of Devonian and Upper Silurian at the base of the bluff. 



55. Kinderhook, Devonian and Upper Silurian, the highest bluffs capped with Burlington 

 limestone. 



56. St. Louis limestone and Lower Coal Measures with characteristic fossils. 



57. Niagara limestone with numerous fossils. 



