HUGHES : mOLEBOROUGH. 
185 
the conclusion that they were all produced by movements in 
the mass subsequent to its consohdation, a view rendered certain 
by the fact that they were found along great hues of displacement 
^ind there only. 
The large boulders resting on the older rocks at the base of 
the Carboniferous, such as those under Xorber Brow for instance 
(Fig. 3), are in many respects suggestive of glacial action, 
A. Grey Limestone, with beds and 
lines of small fragments from 
the Cambrian (Sedg.) and Silu- 
rian rocks and of vein quartz, 
generally round and about the 
size of a sweet pea. 20 feet. 
B. Gre}' Limestone, in which frag- 
ments and pebbles, as described 
above, are uniformly and 
thickly distributed all through. 
20 feet. 
C. Grey Limestone, with large frag- 
ments up to the size of beans. 
12 feet. 
D. Grey Limestone, with rolled and 
subangular pieces of Silurian 
Grit and Mudstone up to 4 
feet in diameter, and close by 
a block 13 feet long occurring 
at the very base. 2 feet. 
E. Bala Shale, with calcareous con- 
cretions sometimes forced into 
coincidence with the cleavage 
planes. 
3. 
SECTION UNDER NORBER BROW NORTH OF AUSTWICK. 
but they are not far transported nor striated but just such 
as lie sporadically on a shore at the present day, where 
only exceptional storms can shift them at all, while the smaller 
material is swept from around them. 
D 
