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in the yellow clay or cave earth, which abounded with the 

 dung of the animals. Mr. Jackson says there was a sill 

 stone in front, evidently worn to smoothness by the frequent 

 passing of the animals ; and just beyond this point there is 

 an opening into a cavern, lower still than tlie lowest point 

 yet reached, and into which the drainage of the cavern now 

 flows. Everything points to the probability of a large 

 quantity of clay having poured out among the talus at this 

 place in very wet seasons, and the clay itself as now found 

 is a pasty, tenaceous mass, unlike any naturally deposited 

 clay with which I am acquainted. 



Amongst the boulders I found one which is of itself suffi- 

 cient to account for the occurrence of boulders without any 

 need of a glacial theory. 



It is a smoothly rounded limestone boulder, precisely such 

 as is formed by the rolling action of falling water in *' pot- 

 holes," and which cannot have had any glacial origin. This 

 boulder occurring as it did with others of black limestone 

 and Silurian slate, is to my mind perfectly conclusive. 



The point at which the last discovery of older bones was 

 made, is at least 30 feet in advance of the original entrance, 

 and was covered in front with talus. It is however a por- 

 tion of the solid cliff, which has remained after all the rest 

 had faUen away, and its evidence is conclusive that a very 

 large mass has thus fallen since these remains were there 

 deposited. The fall of this large mass, containing in its 

 fissures clay and boulders from the glacial drift which cer- 

 tainly passed over it, would be amply sufficient to account 

 for all the drift boulders which actually occur in the talus. 



I visited Victoria Cave three years ago, when the opera- 

 tions had newly commenced, and I then found at the top of 

 the talus precisely similar boulders to those which have 



