70 



JUNGFRAU MOUNTAIN. 



grained : near the foot of the Jungfrau, in the upper part of the val- 

 ley of Lauterbrun, I observed a vertical junction of limestone and 

 granite. If cone-shaped, protruding masses of limestone are ob- 

 served in any part of the mountain, they are, I am persuaded, mere 

 spurs from the limestone on the north side, and cover the granite, 

 but do not penetrate into it. The penetration of granite into lime- 

 stone represented in fig. 2. of the same plate, is far more probable 

 and intelligible. 



