264 



Field Columbian Museum — Geology, Vol. i. 



those at the side. The mass in Shiloh Cave mentioned above and 

 the "Canopy"* in Wyandotte Cave, are excellent illustrations of 

 such formations. 



COAN'S CAVE. 



The spelling, "Coon's", given by Blatchiey| for the name of this 

 cave seems to be incorrect. According to residents of the region the 

 cave derives its name from one of the original owners of the land on 

 which the cave is situated, whose name was Coan. 



The entrance to the cave is well-shaped, and is not unlike the 



« m; 



Fig. 8— Diagram illustrating manner and directions of growth of leaf stalactites. The arrow shows 

 the direction of the water current. The cross section at the left shows rings of growth. 



descriptions given of cenotes previously referred to. The cavity 

 gradually enlarges toward the bottom. A small surface stream occa- 

 sionally flows into the cave. The entrance is a good illustration of 

 ingress obtained by following the path of the stream which has 

 formed the cave, in contrast to the entrance to Wyandotte and Mam- 

 moth Caves, which are of the nature of openings made by a fallen 

 roof. 



♦Figured in Report of Indiana Geological Survey for 1896, PI. X. 

 tO/. cil., p. 129. 



