OBSERVATIONS ON TYPHLOMOLGE RATHBUNI. 



the course of rain. The pond is formed by a subterranean river, 

 which is evident from the fact that the water is flowing, though 

 hardly in a perceptible manner. The flow can be observed from 

 the dislocation of bodies dropped into the water at the N.N.W. 

 end of the pond. If the water is not disturbed such bodies will 

 arrive, in the course of an hour or so, at the S.S.E. end, thus 



By means of a collapsible 



indicating the direction of the flow. 



RUttu.de 



10 



FIG. 6. Ezell's Cave. Diagrammatic section reconstructed from several 



cross-sections. 



boat which was brought down into the water it is possible to 

 follow the course of the subterranean creek towards N.N.W., 

 (Fig. 9) for a distance of about 91^ feet. The crack extends, 

 however, beyond this point and by climbing over a number of 

 rocks the creek can be seen to continue in this crack. But we 

 had no opportunity so far to explore this part of the cave. 



The greatest depth of the water is 13^2 feet, as far as it can 



