54

G54

among the Ss of the sample, of those that are P, probably
approximates, within a certain limit of approximation, to the
value of the real probability in question. I propose to term
such reasoning Quantitative Induction. Now, if I were
writing a treatise on logic, I should here be obliged, not
only to explain teach the art of sampling, including
all that Dr. Karl Pearson and others have taught us about
distributions of specific instances among general ones, and
the consequent proper inferences in such cases, but I should