Lubbock; and especially the different methods which have led to important discoveries in the various sciences. This applies not only to the illustrations in the text proper, but also to those which I have collected in Chapter XX. Under the head of Logical Exercises. It seems to me, moreover, that inasmuch as the principles of inductive investigation are in such accord with the scientific Spirit of our age, their importance as a logical discipline cannot be too highly valued.
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