CLOUDS AND RIVERS, ICE AND GLACIERS. 



181 



distinct. Such an observation would effectually exclude 

 stratification from the problem of the veined structure, 

 and through the removal of this tempting source of 

 error, we should be rendered more free to pursue the 

 truth. 



460. We sought for this conclusive test upon the 

 Mer de Glace, but did not find it. We sought it on the 

 Grindelwald, and the Aar glaciers,"* with an equal want 

 of success. On the Aletsch glacier, for the first time, 

 we observed the apparent coexistence of bedding and 

 structure, the one cutting the other upon the walls of 

 the same crevasse. Still the case was not sufficiently pro- 

 nounced to produce entire conviction, and we visited the 

 Gorner glacier with the view of following up our quest. 



WXT^ 



STRUCTURE AND BEDDIXG OX ALETSCH GLACIER, 



461. Here day after day added to the conviction that 

 the bedding and the structure were two different things. 



* M. Agassi z, however, reports a case of the kind upon the glacier of the 

 Aar. 



