ARAGO'S great work, which was some time since announced in the _International_, is now nearly complete and will soon be given to the public. The scientific and literary world of Europe expect it with impatience. It is said even that Alexander von Humboldt intends to be its translator into German, but this is not probable. It is also rumored that the author gives an appendix in which he for the moment abandons science for politics, in order to pay off some of the attacks he has suffered from Proudhon. Our own opinion is that he had better stick to his trade and leave Proudhon alone. * * * * * CHARLES SUMNER has published (through Ticknor, Reed & Fields of Boston,) two volumes of his "Orations and Addresses." Mr. Sumner is a scholar of the finest and rarest capacities and accomplishments. He is of the school of Everett, but has more earnestness, and consequently more compactness of expression, and more force. He enters heartily into all the 'progressive' movements of the day, and is of many the intellectual leader. His bravery is equal to every emergency into which he may be led by a search after truth, and to all combats he brings arms of the truest metal and most exquisite polish. There are in New-England many more fervid and powerful orators, but we know of none whose orations are delivered with a more pleasing eloquence. We have not leisure now to review Mr. Sumner's volumes; but if among our readers there are any who desire to see displayed the "very form and spirit" of the new age, we commend them to "The True Grandeur of Nations," and the other discourses, speeches, and essays, here published. * * * * * "THE MANHATTANER IN NEW-ORLEANS" is the title of a small volume, from the press of J. S. Redfield, which was written by an accomplished New-York lawyer who had resided some time in the Crescent City. It is a very graphic and delightful picture of the social life of the metropolis of the South; betraying a quick insight, a genial appreciation of what is manly, and fairness in regard to every thing. We have had need of such a book, for hitherto we northerners have generally known less of our southern neighbors than even Professor Bowen knew of the Hungarians, before Mrs. Putnam enlightened him. We are sorry that Mr. Hall, to whom we are indebted for "The Manhattaner in New-Orleans," intimates that it is the last book for the preparation of which he will ever have withdrawn his attention from the law. * * * * * "ELIZABETH BARRETT BROWNING, MARGARET FULLER D'OSSOLI AND GEORGE SAND," is the title of an article in which the characters and genius of these three remarkable women is discussed, in the last number of _The Palladium_, a new English monthly. * * * * *