ial domain under consideration. These being discovered, might
furnish, it was instinctively felt, starting points from which to work
the Deductive Process, with the same success as that which attended its
application to Mathematics.

The Inductive Principle, considered either as a Process or a Method, is
valuable, therefore, mainly as it furnishes proper starting points for
the activity of the Deductive Principle. Thus far in the history of the
Natural Sciences it has been the best and safest guide in affording such
starting points. But the indications are numerous all about us that the
progress of Scientific discovery will ere long bring us to a stage,
where the Laws or Principles which underlie every department of the
Universe being fully revealed, the function of the Inductive Principle
as a guide to fundamental bases, will be at an end, and the Deductive
Method once more assume the leadership, opening to us all departments of
investigation, with the rapidity, precision, and certainty which
characterize Mathematical research and Demonstrative Reasoning.

This _desideratum_ must necessarily result whenever a Unitary Law shall
be discovered in Science; whenever the Sciences, and the Phenomena
within the different Sciences, shall be _basically_ connected. All the
present conditions and tendencies of knowledge indicate that the
attainment of this crowning intellectual goal was predestined to our
epoch. It has been the grand work of the Inductive Method to arrange
Facts under Principles, and these latter as Facts or Truths under a
smaller number of Principles, and these in turn under a still smaller
number, until all the Phenomena of the different domains of thought
which are reckoned as Sciences are included within a few Principles
which lie at the foundation of each domain. The connection of these few
Principles by a still more fundamental Law, is all that is necessary to
the completion of the work of the centuries and the establishment of a
Universal or Unitary Science. Already those recognized as leaders in the
Scientific world watch expectantly the signs of the times and await the
advent of the Grand Discovery which is to usher in a new intellectual
era, 'We have reached the point,' says Agassiz, in one of his _Atlantic
Monthly_ articles, 'where the results of Science _touch the very problem
of existence, and all men listen for the solving of that mystery_. When
it will come, and how, none can say; but this much, at