on-Its history traced f

latter, sometimes our will interfered as the producing or determining cause, and sometimes our nature seemed to act by a mechanism of its own, without any conscious effort of the will, or even against it. Our inward experiences were thus arranged in three separate classes, the passive sense, or what the School-men call the merely receptive quality of the mind; the voluntary; and the spontaneous, which holds the middle place between both. But it is not in human nature to meditate on any mode of action, without inquiring after the law that governs it; and in the explanation of the spontaneous movements of our being, the metaphysician took the lead of the anatomist and natural philosopher. In Egypt, Palestine, Greece, and India the analysis of the mind had reached its noon and manhood, while experimental research was still in its dawn and infancy. For many, very many centuries, it has been difficult to advance a new truth, or even a new error, in the philosophy of the intellect or morals. With regard, however, to the laws that direct the spontaneous movements of thought and the principle of their intellectual mechanism

ac, this is not the place to speak. So wide indeed is the chasm between Sir James Mackintosh's philosophical creed and mine, that so far from being able to join hands, we could scarcely make our voices intelligible to each other: and to bridge it ove

very fingers which had been cut off. Des Cartes was led by this incident to reflect on the uncertainty with which we attribute any particular place to any inward pain or uneasiness, and proceeded after long consideration to establish it as a general law: that contemporaneous impressions, whether images or sensations, recall each other mechanically. On this principle, as a ground work, he built up the whole system of human language, as one continued process of association. He showed in what sense not only general terms, but generic images,-under the name of abstract ideas,-actually existed, and in what consist their nature and power. As one word may become the general exponent of many, so by association a simple image may represent a whole class. But in truth Hobbes himself makes no claims to any discovery, and introduces this law of association, or (in his own language) discursion of mind, as an admitted fact, in the solution alone of which, and this by causes purely physiological, he arrogates any originality. His system is briefly this; whenever the senses are impinged on by external objects, whether by the rays of light reflected from them, or by

quae singula et simpliciter acceperat imaginatio, ea conjungit et disjungait phantasia." And the law by which the thoughts are spontaneously presented follows thus: "quae simul sunt a phantasia comprehensa, si alterutrum occurrat, solet secum alterum representare." To time therefore he subordinates all the other exciting causes of association. The soul proceeds "a causa ad effectum, ab hoc ad instrumentum, a parte ad totum;" thence t

tion of the associative principle, namely, to the writings of Aristotle; and of these in particular to the treatises De Anima, and "De Memoria," which last belongs to the series of essays entitled i

rform for them under the notion of hollow tubes, as Hartley teaches-nor finally, (with yet more recent dreamers) of chemical compositions by elective affinity, or of an electric light at once the immediate object and the ultimate organ of inward vision, which rises to the brain like an Aurora Borealis, and there, disporting in various shapes,-as the balance of plus and minus, or negative and positive, is destroyed or re-established,-images out both past and present. Aristotle delivers a just theory without pretending to an hypothesis; or in other words a comprehensive survey of the different facts, and of their relations to each other wit

in time, whether simultaneous, preceding, or successive; second, vicinity or connection in space; third, interdependence or necessary connection, as cause and effect; fourth, likeness; and fifth, contrast. As an additional solution of the occasional seeming chasms in the continuity of reproduction he proves, that movements or ideas possessing one or the other of these five characters had passed through the mind as intermediate links, sufficiently clear to recall other parts of the same to

to several of my literary acquaintances, who admitted the closeness of the resemblance, and that it seemed too great to be explained by mere coincidence; but they thought it improbable that Hume should have held the pages of the Angelic Doctor worth turning over. But some time after Mr. Payne showed Sir James Mackintosh some odd volumes of St. Thomas Aquinas, partly perhaps from having

s of the choice and judgment the associative power becomes either memory or fancy; and, in conclusion, to appropriate the remaining offices of the mind to the reason, and the imagination. With my best effor