We have been thus particular in de
scribing the present position of the
surface, for the purpose of saying a
few words intelligbly about the dilu
vial currents which fit some period
appear to have swept over it. That
the whole country was formerly sunk
'beneath an ocean, is a truth which no
geologist will deny. The mu'titude of
fossil shell fish found in the limestone
I are alone sufficient to prove this. If
then, when thus sunk, a strong oceanic
current similar to the Gulf stream, had
for a long period of time set south
ward, it would probably account for
most of the phenomena at present ob
servable. If such a range of high
land as we have supposed, existed to
the north of us, the effect of such a
current wculd be to tear it away and
spread it over the country to the south;
that such a force has levelled down
such a ridge we cannot doubt. The
sandstones being easiest broken and
carried ofi have been most affected—
and a long sandy region covered to
some extent with pine, now marks the
outlines. Jagged points of the same
rock arc met with over the whole re
gion, giving a particularly wild and
dtsolate appearance to the landscape.
The same current swept through the
lead region, tearing up the rock and
carrying vast masses of it away, to an
average depth of at least six hundred
feet over the whole surface—the
mounds alouc remaining. The hard
ness of the rock withstood to a cer
tain extent, the force of the flood.
