The fortunes of the two systems, which began about the same time to acquire influence, were dissimilar. The pessimistic element alone evinced itself fruitful, in the sense that it came immediately into contact with general culture through manifold forms of presentation and extensive discussion. The royal structure of the Schopenhauerian philosophy has given a host of dispensing draymen for thirty years an abundance to do. The leader of this army, EDUARD VON HARTMANN, has long since taken a place by the side of the sage of Frankfort, as independent master-builder, and presented a system planned and executed with the most diffuse architectural details. The nuclear idea of the Philosophy of the Unconscious (_Die Philosophie des Unbewussten_) has been amplified by the author himself in every direction, extended, exhibited in its historical relationships, and applied to the special departments of philosophical science. The theory of cognition, ethics, æsthetics, the philosophy of religion have all been treated of by Hartmann in the last two decades in voluminous works, and often repeatedly elaborated. In addition thereto, come several volumes of essays in which the philosopher has had something to say upon every conceivable topic, political, literary, æsthetical, pedagogical, and politico-economical. Hartmann's fecundity is only surpassed by his volubility. In him appears anew that union of philosophy and journalism that had remained disunited since the close of the period of illumination. The utility, nay the necessity, of this combination, with which, unfortunately, the academical philosophy of the passing century would have naught to do, Hartmann knew the value of, and skilfully exhibited his appreciation; though one often wishes that its popular character had, in places, been made to do service in behalf of different ideas. The writings of no other philosopher have obtained so wide a circulation as those of Hartmann. His chief work, "The Philosophy of the Unconscious," first published in 1870, has long since been put in stereotype form, and from time to time passes through repeated new editions. Also his numerous other writings have for the greater part been repeatedly republished. We possess a collection entitled "Select Works," and have just received a "Popular Edition." And it is moreover generally known that it has only been since the appearance of the Philosophy of the Unconscious, that the sale of the writings of Schopenhauer has assumed great proportions. Through the mediation of Hartmann Schopenhauer's fundamental ideas first reached the general public. * * * * *