The Cruise of the Betsey: or, A Summer Ramble Among the Fossiliferous Deposits of the Hebrides. With Rambles of a Geologist or, Ten Thousand Miles Over the Fossiliferous Deposits of ScotlandMiller, Hugh
Philosophy
The Cruise of the Betsey: or, A Summer Ramble Among the Fossiliferous Deposits of the Hebrides. With Rambles of a Geologist or, Ten Thousand Miles Over the Fossiliferous Deposits of Scotland
Miller, Hugh
Geology -- Scotland
appearance, and enough of the second element of _irregularity_ to
exhibit forms of an alphabet-like variety of outline. The chemist,
however, in cross-questioning the explanation, has his puzzle to
propound regarding it. Quartz, he says, being considerably less fusible
than feldspar, would naturally consolidate first, and so would give form
to the more fusible substance, instead of deriving form from it. On what
principle, then, is it that, reversing its ordinary character, it should
have been the last of the two substances to consolidate in the graphic
granite?--a query to which there seems to be no direct reply, but which
as little affects the fact that it _was_ the substance which last
consolidated, and which took form from the other, as the decision of the
learned Strasburgers, which determined the impossibility of the long
nose in Slawkenbergius's Tale, affected the actual existence of that
remarkable feature. "It happens _to be_, notwithstanding your
objection," said the controversialists on the pro-nose side of the
question. "But it _ought not_," replied their opponents.
The rain again returned as I was engaged in examining the graphic
granite of the Portsoy vein; the breeze from the sea heightened into a
gale, that soon fringed the coast with a broad border of foam; and I
entered the town, which looked but indifferently well in its gray
dishabille of haze and spray, tolerably wet and worn, with but the
prospect before me of being weather-bound for the rest of the day. I
found an old-fashioned inn, kept by somewhat old-fashioned people, who
had lately come from the country to "open a public;" and ensconced
myself by the fireside, in a huge many-windowed room, that must have
witnessed the county dinners of at least a century ago. Soon wearying,
however, of hearing the rain beating mad-like ratans upon the panes, and
availing myself of a comparatively "lucid interval," I sallied out,
wrapped up in my plaid, to examine the serpentine beds in the
neighborhood, which produce what is so extensively known as the Portsoy
marble. The _beds_ or _veins_ of this substance,--for it is still a moot
point whether they occur here as mere insulated masses of contemporary
origin with the primary formations which surround them, or as Plutonic
dykes injected into fissures at a later period,--are of very
considerable extent, one of them measuring about twenty-five yards
across, and another considerably more than a quarter of a mile; and, had
they but the solidity of the true marbles, they would scarce fail to be
regarded as valuable quarries of a highly ornamental stone, admirably
suited for the interior decorations of the architect. But they are
unluckily what the quarrier would term rubbly,--traversed by an infinity
of cracks and fissures; and it is rare indeed to find a continuous mass
out of which a chimney-jamb or lintel could be fashioned. The serpentine
was wrought here considerably more than a century and a half ago, and
Public-domain text, read in full here on John Shaqi.
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