ICE -RAFTS. 
157 
RAF r OF BELT-ICE. 
found masses that had been detached in this way, floats 
ing many miles out to sea,—long, symmetrical tables, 
two hundred feet long by eighty broad, covered with 
large angular rocks and boulders, and seemingly im¬ 
pregnated throughout with detrited matter. These 
rafts in Marshall Bay were so numerous, that, could 
RAFT OF SLATES. 
they have melted as I saw them, the bottom of the sea 
would have presented a more curious study for the 
geologist than the boulder-covered lines of our middle 
latitudes. 
One in particular, a sketch of which I attach, had 
its origin in a valley where rounded lragments of water- 
