ALPINE SCULPTUKE. 



247 



tended over several days. On each line eleven stakes 

 were fixed, which are designated by the figures 1, 2, 3, 

 &c. in the Tables. 



Morteratsch Glacier, Line A. 



No. of Stake. Hourly Motion, 



1 0-35 inch. 



2 0-49 



3 0-53 



4 0-54 



6 0-56 



6 0-54 



7 0-52 



8 0-49 



9 0-40 



10 0-29 



11 0-20 



As in all other measurements of this kind, the re- 

 tarding influence of the sides of the glacier is manifest : 

 the centre moves with the greatest velocity. 



Morteratsch Glacier, Line B. 



No. of Stake. Hourly Motion. 



1 ...... 0-05 inch. 



2 0-14 



3 0-24 



4 0-32 



5 0-41 



6 0-44 



7 . . . . ' . . 0-44 



8 ...... 0-45 



9 ..... 0-43 



10 0-44 



11 0-44 



The first stake of this line was quite close to the 

 edge of the glacier, and the ice was thin at the place, 

 hence its slow motion. Crevasses prevented us from 

 carrying the line sufficiently far across to render the 

 retardation of the further side of the glacier fully 

 evident. 



17 



