49 



or less jointed, and tlieretore easily eroded by underground waters. 

 As a result, large caves, some of them possessing great vaulted rooms, 



rcen i, 



HtiJs.n Riv»r 



Sliaies I 



Hi a gar a S halt 

 ani Ltmfcfotn " 



INDIANA 



al Ihe Clos e oj 

 Lowf r C ar ooin^etoui 

 Time . 



deep pits, high v^^aterfalls and streams of water large enough to allow 

 the ready passage of a boat, are found throughout this area. All of 

 these caves are due to the action of water— that greatest of nature's 



4— A. OF SCIKNCE, '03. 



