the surface of the globe. It is therefore highly interesting not only to
bring together that multitude of those proofs which are to be found in
every country, but also to give examples of that variety of ways in
which the fact is to be proved. Were it necessary, much more might be
given, having many examples in this country of Scotland, in Derbyshire,
and in Wales, from my proper observation; but, in giving examples for
the confirmation of this theory, I thought it better to seek for such as
could not be suspected of partiality in the observation.



CHAP. III.

_Facts in confirmation of the Theory, respecting those Operations which
re-dissolve the Surface of the Earth_.

We have now discussed the proof of those mineral operations by which
the horizontal strata, consolidated at the bottom of the sea, had been
changed in their position, and raised into the place of land. The next
object of our research is to see those operations, belonging to the
surface of the earth, by which the consolidated and erected strata have
been again dissolved, in order to serve the purpose of this world, and
to descend again into the bottom of the sea from whence they came.

Of all the natural objects of this world, the surface of the earth is
that with which we are best acquainted, and most interested. It is here
that man has the disposal of nature so much at his will; but here, man,
in disposing of things at the pleasure of his will, must learn, by
studying nature, what will most conduce to the success of his design,
or to the happy economy of his life. No part of this great object is