1910-1911.] 



439 



schools, writing about thirty-five years ago, gives a graphic 

 description of a fisherman from Arranmore, who was driven by a 

 storm to the coast of the Scotch Highlands. He entered a house, 

 and was surprised when the owner accosted him by name. The 

 Highlander bared his head, and, pointing to a scar, reminded his 

 guest of an encounter he once had with a seal, adding "I was that 

 seal.'"' In conclusion, Miss Andrews urged the pressing need of 

 collecting these old tales, which the antiquary of the future, with 

 fuller knowledge of the past, may be better able than we are to 

 decipher, but if the stories be allowed to perish one link with the 

 past will be irretrievably lost. 



A discussion followed, in which Mrs. Hobson, Messrs. 

 Milligan, Mollan, and others took part. 



GLACIAL LAKES AND THEIR OVERFLOW CHANNELS. 



The usual monthly meeting of the Geological Section was 

 held in the Club-room in the Museum, on 15th February, the 

 Chairman of the Section (Mr. W. J. C. Tomlinson) presiding. 

 The main business of the evening was a paper on " Glacial Lakes 

 and their Overflow Channels," by Dr. A. R. Dwerryhouse, 

 F.G.S. The lecturer introduced the subject by referring to 

 certain existing lakes whose waters are held up by a dam of 

 glacier ice, and as an example cited the Merjelen See, on 

 the flanks of the great Aletsch glacier, in Switzerland. In this 

 case the glacier occupying the main valley has advanced across 

 the mouth of a tributary stream so as to pond up its waters and 

 produce a lake. This lake, until its level was artificially lowered 

 by the Swiss Government, drained by way of the col at the head 

 of its valley into the adjoining valley, and by so doing cut a 

 channel in the rocks of the col, which remains as a permanent 

 witness of the former level of the water. He then described 

 certain well-known examples of such deserted overflow channels in 

 Great Britain, referring particularly to those described by Professor 



