39 



Over this area the exposed rocks are composed of a series of bluish, thin- 

 bedded limestones intercalated with blnish-green limey shales, while at 

 the top are massive sandy limestone beds of a brownish color The shales 

 are soft, easily weathered and very fossiliferous. while the l)]uisli jime- 



IWDIANA 

 al IKc Clo.'! t o\ 

 Loii/fi cj"t[-uria,u T-ime. 



Stones are in places largely composed of fossils. As a part of an island, 

 therefore, upheaved from the Ordovician seas, was the first born land of 

 Indiana; and to that little corner all other portions of our no))le State 

 were added in their tui-n by the workings of nature's forces during after 

 ages. 



