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 in Europe, from magazines, and the rich store of medical and psychological publications furnished by the English, French, and German press, all the essays and cases that relate to the human faculties under unusual circumstances (for pathology is the crucible of physiology); excluding such only as are not intelligible without the symbols or terminology of science. These I would arrange under the different senses and powers: as the eye, the ear, the touch, &c.; the imitative power, voluntary and automatic; the imagination, or shaping and modifying power; the fancy, or the aggregative and associative power; the understanding, or the regulative, substantiating, and realizing power; the speculative reason,..vis theoretica et scientifica, or the power, by which we produce, or aim to produce, unity, necessity, and universality in all our knowledge by means of principles a priori; the will, or