each science becomes an art to the growing part--when we
recognise the closeness of these associations, we shall the more clearly
perceive that as the connection of the arts with each other has been
ever becoming more intimate; as the help given by sciences to arts and
by arts to sciences, has been age by age increasing; so the
interdependence of the sciences themselves has been ever growing
greater, their mutual relations more involved, their _consensus_ more
active.

* * * * *

In here ending our sketch of the Genesis of Science, we are conscious of
having done the subject but scant justice. Two difficulties have stood
in our way: one, the having to touch on so many points in such small
space; the other, the necessity of treating in serial arrangement a
process which is not serial--a difficulty which must ever attend all
attempts to delineate processes of development, whatever their special
nature. Add to which, that to present in anything like completeness and
proportion, even the outlines of so vast and complex a history, demands
years of study. Nevertheless, we believe that the evidence which has
been assigned suffices to substantiate the leading propositions with
which we set out. Inquiry into the first stages of science confirms the
conclusion which we drew from the analysis of science as now existing,
that it is not distinct from common knowledge, but an outgrowth from
it--an extension of the perception by means of the reason.

That which we further found by analysis to form the more specific
characteristic of scientific previsions, as contrasted with the
previsions of uncultured intelligence--their quantitativeness--we also
see to have been the characteristic alike in the initial steps in
science, and of all the steps succeeding them. The facts and admissions
cited in disproof of the assertion that the sciences follow one another,
both logically and historically, in the order of their decreasing
generality, have been enforced by the sundry instances we have met with,
in which the more general or abstract sciences have been advanced only
at the instigation of the more special or concrete--instances serving to
show that a more general science as much owes its progress to the
presentation of new problems by a more special science, as the more
special science owes its progress to the solutions which the more
general science is thus led to attempt--instances therefore illustrating