In contemplating this last-named picture, the demands on the attention are so numerous and weighty,--in the first place, to comprehend the situation, and exchange at a moment's notice the stagnation of the temperate zone for the emotional excitement of the tropics; then to separate and classify the many points of beauty, to rise to the summits of distant mountains, sublime in their snowy crests, and sink again to earth at the foot of the rustic cross, by whose aid we may one day rise to sink no more,--to follow the painter successfully through this maze of thoughts, without the guiding light of his own matchless color, would seem a difficult and displeasing task. But the task has been accomplished with complete success, in an English line engraving of the _Heart of the Andes_, recently arrived in this country; which indication of popularity abroad conduces materially to the ever-growing fame of the artist. The same test, we believe, is in store for the _Icebergs_--with what result, time will show. Meanwhile, the picture itself will, on foreign soil, plead the cause of American civilization, and tend to assure those who look with dismay at the tumultuous upheavings of freedom's home, that imperishable Art still maintains her placid sway in this distracted land, and that her votaries falter not in their allegiance. Volcanoes pour out fiery lava under the red glare of the setting sun, obedient to Church's magic touch--delicate fancies are weaved into poetic life by the fingers of Gottschalk--but the voice of Poe, alas! is mute forever. The 'Lost Lenore,' found too late, may have inspired a song far beyond the dull range of human comprehension, but poor mortals left below, can only echo, with the grim and ghastly raven: _Nevermore! Nevermore!_ LITERARY NOTICES THE SLAVE POWER; ITS CHARACTER, CAREER, AND PROBABLE DESIGNS: BEING AN ATTEMPT TO EXPLAIN THE REAL ISSUES INVOLVED IN THE AMERICAN CONTEST. By J. E. CAIRNES, M.A., Professor of Jurisprudence and Political Economy in Queen's College, Galway, and late Whately Professor in the University of Dublin. Second edition. New York: Carleton, 413 Broadway. London: Parker and Son & Co.