678 KANSAS CITY REVIEW OF SCIENCE. 



the Rotunda and proceeded along Audubon Avenue perhaps a quarter of a mile, 

 to the first sharp turn. Here I heard water dripping at the summit of a long hill 

 of loose rock which rose before me to the roof of the dome. Up this I climbed 

 until I reached the spot upon which the water fell. Most of it sank at once be- 

 tween the rocks and disappeared, but accumulations of sand here and there re- 

 tained shallow pools, and formed tiny beaches among the fallen fragments. The 

 wet sand was seen at the first glance to be covered with the tracks of insects, as if 

 the hillside swarmed with life. And, in fact, crickets (Raphidophora subterranea 

 Scud.) and their young were quite numerous upon the wet stones, although they 

 were congregated in still greater numbers upon the side-walls and roof. Almost 

 the first stone I turned over uncovered an Anopthalmus, but it fled like a shadow 

 into a crevice and saved itself. Three or four others, however, shortly fell into 

 my clutches, and then during an hour's hunt I could find no more. My move- 

 ments had, I suppose, frightened the rest and caused them to seek shelter in the 

 cavities below. I took, however, two specimens of a minute blind spider (An- 

 throbia), which were running upon the sand. I next turned my attention to the 

 pools of water, and, though none of them were larger than an ordinary wash- 

 bowl, I found them all veritable little aquaria, well stocked with the Crustacean 

 described by Packard (Ccecidotea stygid). Some of the pools contained twenty or 

 thirty specimens, in all stages of growth. In company with them occurred, not 

 rarely, a leech, or possibly worm, of very slender form, not thicker than an insect 

 pin, but capable of extending its delicate body to a length of two inches. Be- 

 ing almost transparent, these creatures were rendered visible by sheir shadows 

 only. 



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The following day we resolved to visit the River Styx, which is the lowest 

 level of the cave and about three miles from the entrance by the route usually 

 taken. 



Arrived at the point where the River Styx crosses the gallery, we found 

 Charon's boat drawn up upon the sand, and, depositing our burdens, we began a 

 search along shore for blind fish and crawfish. The forms of several were soon 

 seen floating like white phantoms in the almost invisible water, and we captured 

 with an insect net several small specimens of both genera of blind fish, Amblyopsis 

 and Thyphlichthys, which resemble each other closely, but want the ventral fin in 

 the atter genus. We took, also, good specimens of the cave crawfish {Cambarus 

 pellucidus Tellk.), and, in addition, a gigantic female of Cambarus Bartonii, the 

 common crawfish of the Green River, but which has quite often been found in 

 the cave waters. A very unexpected find, however, was a common frog. He 

 was restinh upon the sand not far from the water, and was somewhat emaciated 

 and apparently much discouraged. A fish with large and perfect eyes, probably 

 a darter, showed itself in one of the large pools. It remained for some time mo- 

 tionless at the surface of the water, within easy reach, but "Pete," our guide, 



