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of predictions. After a hypothesis
has been suggested to us by the agreement
between its consequences and observed fact,
there are two different lines that our further
studies of it may pursue. In the first
place, we may look through the known
facts and scrutinize them carefully
to see how far they agree with the hypothesis
and how far they call for modifications
of it. That is a very proper and needful
inquiry. But it is Abduction, not Induction, and
proves nothing but the ingenuity
with which the hypothesis
has been adapted to the facts of the case. To take this for
Induction, as a great proportion of students