MelvUjLE. Battle Pieces and Aspects ot the War. By Herman ^elville. New .York: Harper Brothers. 12moM pp. 272.«Much like Milton’s image of sin, this book, by the author of certain voluptuous and corrupting novels, begins with many fair and well-constructed patriotic verses, but ends in a prose supplement which might have served for the Address of the late Convention of shamUnionists, which met two weeks agro in7 1 . * ' oour city. Mr. Melville has come out as the poet-advoeate of the new party, and is putting into verse the lessons of such eminent patriots and pure-minded men as Thurlow Weed, H. J. Raymond, and Andrew Johnson, He probably expects a Consulship on some of the South Sea Islands not yet reached by missionary influence, as a reward.Mr, Melville’s poetry is readable, often elegant, sometimes almost Browning-like in ingenuity, though never hope* lessly intricate in thought; it is an addition to our lyrics of the war. But there is an affectation of neutrality about the book as a whole, a want of moral earnestness and conviction, that detracts from its value. It is neither good poetry nor good' politics It is an attempt to combine pure art with very impure political designs, and it must' fairly be written down a failure. The people will never give ‘it a place by the firm trumpet tones of Boker, although the poetry in and of itself may, in many respects, be just as meritorious.