108 



Fig. 28. Lower Twin cave iinirl ot Shawnee cave; looking nm-lh. Here the 

 roof collapsed at a riglit-angled iiirn in its course where it appears to have been 

 joined by another cave from the south. The location of a sink here caused a col- 

 lapse similar to the preceding case. The water formerly flowed from the upper cave 

 toward the east and then turned north into this opening— docs at present during 

 high water — but now occupies a cutoff between the two caves. 



