1842.] ANCIENT GLACIERS, 273 



Caernarvonshire, and on the Boulders transposed by floating 



Ice."* 



Mr. Archibald Geikie speaks of this paper as standing 

 " almost at the top of the long list of English contributions to 

 the history of the Ice Age." f 



The latter part of this year belongs to the period including 

 the settlement at Down, and is therefore dealt with in another 

 chapter.] 



* ' Philosophical Magazine,' 1842, p. 352. 

 f Charles Darwin, ' Nature ' Series, p. 23, 



