456 
IMBEDDED BERGS. 
resembling' till. In such cases, the deeply imbedded 
position of the larger fragments spoke of their having 
been there from the original structure of the berg, 
while the paste seemed to have been upturned after- 
ward from the bottom through which the berg had 
furrowed its way; the occasional excess of both being 
due, in a greater or less degree, to atmospheric action. 
The preceding sketch shows the disposition of these 
fragments sufficiently well. They consisted of syen- 
ites, gneisses, rounded quartzes, green-stones, and clay 
slates ; in fact, of all the characteristic rocks of our 
Plutonic coast-line. In a single instance, I found a 
piece of well-marked actinolite, eight inches in diam- 
eter, surrounded by crumbled chlorites and serpentines. 
In the primary forms of 
berg, the disposition of the 
transported material did 
not seem to be determined 
by any law. Sometimes, 
but rarely, I could follow 
moraine traces, or rather 
lines indicating deposits 
from contiguous cliffs ; but 
generally the fragment 
seemed to be cemented 
