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Classification of the Sci.
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the major sciences ranked with that of the sciences whose classification depends on the classification of the instincts. For, of course, what will appear in the classification as single instincts are themselves classes of instincts. To prevent this protest from being forgotten, he will record it upon the very names given to the classes of instincts by giving them a fanciful character which must serve as a reminder that the classification is not too seriously advocated.

Such being the sense in which the word instinct is to be used, let us begin our attempt at classifying the instincts by recurring to the remark that instincts cluster about two as foci, the instinct concerning food and the getting of it, and the instinct concerning reproduction. The former group govern man's treatment of things, the latter his dealings with fellow-beings. The former is physical, the latter psychical. But on closer scrutiny, the latter group seems too heterogeneous. Such instincts as that for Art and Scientific