36 Proceedings of the Royal Irish Academy. 



Before coming to 3 we cross the Hue of the Little Narrow Gallery, 

 which affords a heautiful example of the swelling tunnel above the deep 

 trench, and of the undermined walls of the latter hollowed away beneath. 

 The line of this gallery crosses the Hyaena Uall, and one side of its tunnel 

 and shelf may be seen in the south part of the latter. It is then interrupted 

 by a break-up of the roof, but is continued in the deep gallery called 

 the Abyss. 



The Hy.kna Hall (3a to 4 and 5), so called because the jaws of the 

 Hyaena were found here first, but not to be confounded with Hyaena Laud. 

 Tins hall is over 40 feet x 30 feet, and is formed of seven parallel galleries, 

 the north ends of which may be seen in their vaultings ; but their dividing 

 partitions have collapsed, and those, together with fallen roof-blocks, 

 Formed a pile Idling the body of the hall in 1904, when we began. The 

 rock-wall, now removed, that Banked the continuation southward of the 

 Narrow Gallery, traversed the ball; but, though standing, it was separated by 

 .in open orack from the roof, and had been undermined, as it stood on sand 

 beneath. As we enter the Hyaena Hall the pendent portions of partitions 

 on the left show the Bame course of events. 



Portion eep, narrow partition between the two eastern galleries 



still stands, being propped by a block. The pale sand that filled the deep 

 trenches at each side of it was particularly rich in bones of Bear and Iteiii- 

 deer. This hall was rich in anmi.il remains. The masses of blocks at its 

 northern end were covered with a lower stalagmite floor, resting in places od 

 Band, but having fallen in where the latter was washed away. Under this 



igmil raring, and Bometimes adhering to it beneath, were numerous 



bones and teeth. 



The pari near the passage that leads to the Elephant Hall (5) had also 

 a lower stalagmite floor; and partly in this, partly in rubble, were several 

 pieces -\ i Mammoth's skeleton, the long bones wanting their extremities, as 

 though these had been gnawed away, and i Hyaena's jaw was found near them. 



In the hollow "i one "i" these large bones was a tooth of a young 

 M immoth. It was noticed that the bones found in the rubble were coated 

 •I mud, and tin- was observed in many parts of the cave-system 

 when were in rubble, This suggests that bones and limestone frag- 



ment- had been contained in a bed of sand that was drained away by waters 

 that bore a muddy deposit which covered the bones. 



At the north-east corner of the Hyaena Hall the irregular Sand Gallery, 

 una lowei level, is plainly one of those water-courses that at a later time 

 worked then way athwart the north and south system of galleries. It has 

 quantities of loose, pale sand ; but, with the exception of a few bits of ancient 



