Here again, though we have not a regular pudding-stone, we have
that which corresponds to it, as having been the effect of similar
circumstances. These are the fracture and detritus of the schistus,
while the strata were deposited upon the broken ends of the schistus at
the bottom of the sea. Most of the fragments of the schistus have their
angles sharp; consequently, they had not travelled far, or been much
worn by attrition. But more or less does not alter the nature of an
operation; and the pudding-stone, which at Jedburgh is interposed
between the vertical schistus and horizontal strata, is here properly
represented by the included fragments of schistus in the inclined
strata.
The line of this junction running, on the one hand, towards Fast Castle
eastward, and, on the other, towards the head of Dunglass burn
westward, our business was to pursue this object in those two different
directions. But it was chiefly in the sea coast that was placed our
expectations, having recollection of the great banks of gravel under
which the strata are buried about Oldhamstocks, near which, from all
appearances, the junction was to be expected.
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