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EDUARD UHLENHUTH. 



conspicuous characteristics in common with the water of the 

 San Marcos Artesian Well. They are of the same temperature 

 and contain the same fauna. One naturally would think of a 

 direct communication between the Purgatory Creek System 

 and the caves which supply the San Marcos Artesian Well. 



FIG. 9. Ezell's Cave Lake. Showing the overlapping ledge. 







We caught only one animal (78.5 mm.) in Ezell's Cave. It 

 was sitting quietly near the bank of the river where the water is 

 shallow, and did not seem to mind pebbles dropped down into the 

 water near it, nor the glare of the light from two Columbia dry 

 cells. We spent 12 days in the cave under the most varied con- 



