94 
SKELETON MUSK OX. 
the sliding of the bed beneath, than by a force from 
without. The paste, frozen so as to resemble limestone 
rock, had filled the costal cavity, and the ribs were 
beautifully polished. It was to the eye an imbedded 
fossil, ready for the museum of the collector. 
THE CLIFFS OF GLACIER BAY. 
I am minute in detailing these appearances, for they 
connect themselves in my mind with the fossils of the 
Eischoltz cliffs and the Siberian alluvions. I was 
startled at the facility with which the silicious lime¬ 
stone, under the alternate energies of frost and thaw, 
had been incorporated with the organic remains. It 
