CROSSING THE GLACIER. 
95 
had already begun to alter the structure of the hones, 
and in several instances the vertebrae were entirely 
enveloped in travertin. 
The table-lands and ravines round about this coast 
abound in such remains. Their numbers and the man¬ 
ner in which they are scattered imply that the animals 
made their migrations in droves, as is the case with 
CROSSING THE GLACIER. 
the reindeer now. Within the area of a few acres 
we found seven skeletons and numerous skulls: these 
all occupied the snow-streams or gullies that led to 
a gorge opening on the ice-belt, and might thus be 
gathered in time to one spot by the simple action of 
the watershed. (22) 
To cross this glacier gave us much trouble. Its sides 
were steep, and a slip at any time might have sent us 
