570 Dr. B.. Hicks — The Ffynnon Beuno and Cae Gwyn Caves. 



Fig. 3 was taken at a distance of about sixteen feet from the entrance 

 at the shaft, and Fig. 2 just within that entrance. The order in that 

 portion of the cavern examined this year accorded in the main with 

 that found during the previous researches, but within the entrance 

 there was a greater thickness of sand, less of the laminated clay, 

 and more bone-earth than in the other parts of the cavern. The 

 bone-earth seems to diminish in thickness rather rapidly outwards 

 under the glacial deposits, but it was found as far out as the excava- 

 tions have been made. Here the bone-earth rests directly on the 

 limestone floor, with no local gravel between, as in the cavern. 



Sand 



Laminated clay- 



Bone earth 



(Sandy clay with pebbles, etc.) 



Gravel 



(Mainly local materials. 



Fig. 2. Section in Cae Gwyn Cave, near the New Entrance. 



Sandy clay . . 

 Laminated clay 



Bone earth 



(Sandy clay with pebbles, etc.) 



Gravel 



(Mainly local materials.) 



Fig. 3. Section in Cae Gwyn Cave, about 16 feet from the New Entrance. 



It would be interesting to know how far the cave earth extends 

 under the glacial deposits, but this could only be ascertained by 

 making a deep cutting through the terrace of glacial deposits, which 

 extends for a considerable distance in a westerly direction. The 

 glacial deposits here are undoubtedly in an entirely undisturbed con- 

 dition, and are full of smooth and well-scratched boulders, many of 

 them being of considerable size. Among the boulders found are 

 granites, gneiss, quartzites, flint, felsites, diorites, volcanic ash, 



