in connection with these things. What its scientific application is I am
quite contented to leave to the learned; who, by-the-by, as far as I
have been able to observe, do not find it easy to agree among
themselves."

"Whereabouts shall we begin," said Edward, after a pause, to the
Captain, "to come most quickly to the point?"

The latter, after thinking as little while, replied shortly:

"You must let me make what will seem a wide sweep; we shall be on our
subject almost immediately."

Charlotte settled her work at her side, promising the fullest attention.

The Captain began:

"In all natural objects with which we are acquainted, we observe
immediately that they have a certain relation to themselves. It may
sound ridiculous to be asserting what is obvious to every one; but it is
only by coming to a clear understanding together about what we know,
that we can advance to what we do not know."

"I think," interrupted Edward, "we can make the thing more clear to her,
and to ourselves, with examples; conceive water, or oil, or quicksilver;
among these you will see a certain oneness, a certain connection of
their parts; and this oneness is never lost, except through force or
some other determining cause. Let the cause cease to operate, and at
once the parts unite again."