This indefatigable laborer in the mine of Indian history continues to throw off from time to time works upon that subject, which bear the marks of great industry, patient research, and extensive information, and which have deservedly given him a high literary reputation as an historical writer. What has yet appeared we believe is only the beginning of a series of works relating to Indian annals, which are to be completed as soon as the author's health, and the duties of an arduous profession, will allow. From a late honor conferred upon him by one of the remnants of the Six Nations, in electing him one of their chiefs, by the name of SA-GO-SEN-O-TA, it seems plain that they highly approve of his efforts to preserve their history; and it may be considered as endorsing the accuracy of his investigations. In this light, the honor conferred, though coming from those whom civilization is crushing beneath its superior intelligence and power, is valuable and important. The present book takes the poetical share of its title from the fact that the author has prefixed CAMPBELL'S celebrated poem, preceded by a sketch of his life, furnished by WASHINGTON IRVING. 'Gertrude of Wyoming,' though beautiful, and seeming to be a narrative of real incidents in a poetical dress, is nevertheless a fiction, albeit founded upon an actual tragedy, whose horrors can hardly be exaggerated by any pen. It has been the design of our author to record the real history of the section of country which was stained by this tragedy, and which for this reason, has a melancholy interest thrown over its natural charms.