inestimable value, are noticeably ignorant of the sciences which have
already become current with the larger part of mankind--in other
words, they are ugly, rude, and disagreeable people, very
progressive, it may be, but very aggressive to boot.

The main difference between these two classes lies in the fact that
the knowledge of the one, so far as it is new, is known consciously,
while that of the other is unconscious, consisting of sense and
instinct rather than of recognised knowledge. So long as a man has
these, and of the same kind as the more powerful body of his fellow-
countrymen, he is a true man of science, though he can hardly read or
write. As my great namesake said so well, "He knows what's what, and
that's as high as metaphysic wit can fly." As usual, these true and
thorough knowers do not know that they are scientific, and can seldom
give a reason for the faith that is in them. They believe themselves
to be ignorant, uncultured men, nor can even the professors whom they
sometimes outwit in their own professorial domain perceive that they
have been outwitted by men of superior scientific attainments to
their own. The following passage from Dr. Carpenter's "Mesmerism,
Spiritualism," &c., may serve as an illustration:-

"It is well known that persons who are conversant with the geological
structure of a district are often able to indicate with considerable
certainty in what spot and at what depth water will be found; and men
OF LESS SCIENTIFIC KNOWLEDGE, BUT OF CONSIDERABLE PRACTICAL
EXPERIENCE"--(so that in Dr. Carpenter's mind there seems to be some
sort of contrast or difference in kind between the knowledge which is
derived from observation of facts and scientific knowledge)--
"frequently arrive at a true conclusion upon this point without being
able to assign reasons for their opinions.