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Classification of the Sci
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generally, to bring one thought to bear upon another thought, and to add to a though, purpose, habit, or action what is needed to complete it, as when one adds to the simulation of an emotion or other state of mind the state of mind itself.

By the Clothes-instinct is meant the lowest, most sensual, and most personal form of expression of mind, as in dress, personal adornment and other exhibitions of vanity and pretension, such as coats of arms, insolence, subtle impertinence, excessive urbanity, stickling for fashions, and all that.

By the Play-instinct is meant, pretty nearly, Schiller's Spiel-trieb, which his great art of concentrated expression enabled him to define pretty clearly in a dozen or so of lengthy epistles, yet after all somewhat narrowly. It prompts men to all their energizing and strenuous labor for the love of ideas, the unremunerative industry of the bookworm, of the theoretical chemist in his laboratory, of the artist who suffers every pang of hunger rather than spare the time for a pot-boiler, of chess-player, and in short of every man whose