OBSERVATIONS ON TYPHLOMOLGE RATHBUNI. 85 



enough ; the water levels in Frank Johnson's Well and in Ezell's 

 Cave are approximately equally high. 



The water is of an extreme clearness and of bluish color, 

 typical also of the water of the sweet water system. It also 

 tastes like this water and has the same temperature (21.5). 

 Using a sufficiently strong light one discovers immediately a 

 great number of Palccnionetes antrorum swimming near the sur- 



, . 





FIG. 8. Water-room in Ezell's Cave. 



face of the water, which thus contains also the same species of 

 animals as were found in the water of the San Marcos Artesian 

 Well and in Frank Johnson's Well. 



Hence the water in Frank Johnson's Well and that in Ezell's 

 Cave have a number of characteristics in common. They have 

 the same taste, are of the same temperature, and their levels are 

 equally high. They harbor the same species of animals. From 

 their characteristics and from their location it seems that they 

 are parts of the subterranean Purgatory Creek System. 



Furthermore, both of these water bodies have certain most 



