138 ICE- ACTION IN WALES. [l859. 



tember. The following morning we drove over to Cefn : the day 

 was fine, and we had a most delightful walk back. The geo- 

 logical interest also I found great. We remained some time in 

 the cave, and I was fortunate enough to find a considerable 

 number of fragments of bones and two nearly perfect teeth. I 

 packed them up as I disinterred them, and have not looked at 

 them since. One, I think, was the tooth of a deer ; the other 

 was too much enveloped in its matrix to say what it was. 



I left Bryn Elwy on Saturday evening, examined the coast 

 section at Llandudno, and 'am now here to see the Drift and ice- 

 action around Snowdon. I remain here until Tuesday morning 

 next, then proceed to Carnarvon, Tremadoc, and Cardigan to 

 Swansea, which I hope to reach either on Monday or Tuesday 

 week next, and still, I trust, in time to find you there. Please, 

 however, write me a line per return to this place, to say the 

 latest day to which you will remain at Stouthall, and I will 

 do my best to have a day with you there. I am, most truly 

 yours, J. PKESTWICH. 



After noting in detail the glacial features of Con way 

 and Capel Curig, he lingered in the neighbourhood of 

 Cwm Glas over the roches moutonnees and blocs 

 perches, and gives a striking view in a few touches 

 of the entrance below Cwm Glas. In short, the geo- 

 logy of this particular district fascinated him, and it 

 was with evident reluctance that he tore himself away. 



" The sides of Cwm Glas up to the little tarn show 

 traces of rounded and striated rocks. They remind me 

 of the small side glaciers pendent on the mountain-sides 

 between the Glacier des Bois and Montanvert. I could 

 not recognise any terminal moraine. The moraine at 

 the entrance of Cwm seemed to me to be part of the 

 great lateral moraine of the main valley of Llanberis." x 



1 It may be interesting to mention that Kamsay's account of " The Old 

 Glaciers of Switzerland and North Wales" was first published in 1859 as 

 one of the chapters in ' Peaks, Passes, and Glaciers, 3 by members of the 

 Alpine Club. It was reprinted as a separate volume in 1860. 



