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Classification of the Sci.
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of the near future which we endeavor to classify.

Every class is constituted and held together by a concept or idea. Every arrangement of ideas is itself an idea. Consequently, every classification whatsoever is governed by an idea, however loose and inconsequential it may be.

A natural classification, that is, a birth-al classification is classification whose governing idea coincides with the idea which determines the things classified to exist.

An idea, in so far as it has any relation to life, is a possible purpose. Therefore, a natural classification is one which proceeds according to the purpose, or quasipurpose, of the existence of the objects classified. In case we know what this purpose is, as for example if we had to classify vehicles, it will be a comparatively easy thing to produce a natural classification. In case