107 



Fig. 20. A diagrammatic figure illustrating clic origin of Phantom lake. 



Fig. 27. Upper Ualtou cave. |jaii ui Shawnee cave (Fig. 11) east of .Mitchell, 

 Ind. The location of cross caves and a sink at this point caused a collapse which 

 l;rings the stream to the surface for several rods when it again continues in its 

 subterranean channel. 



