Gabriele Rosa, of Bergamo, Lombardy, an author of note, furnished to the _Review_ of Venice, (Revista Veneta) a couple of papers on this traveler, which appeared April 20 and 27, 1856, and were reprinted, at Bergamo, in 1861, under the title, “Of the Life and Writings of Constantine Beltrami of Bergamo, Discoverer of the Sources of the Mississippi;” (Della vita e degli scritti di Costantino Beltrami da Bergamo, scopritore delle fonti del Mississippi)—a pamphlet of 34 pages octavo. On being applied to, through the post, the author courteously sent several copies of his little work to the United States—to the writer of this paper—besides furnishing, in his letters, information in reply to inquiries. In consequence of this correspondence, which took place in 1863-4, the municipality of the same city formed the plan of publishing, and dedicating to the Historical Society of Minnesota, a work which should be a proper memorial of him who was their countryman and so deserving of honor. This book was brought out in the beginning of 1865 and is entitled “Costantino Beltrami da Bergamo—Notizie e lettere pubblicate per cura del municipio di Bergamo e dedicate alla societa storica di Minnesota.” It is a small but handsome quarto of 134 pages and contains: 1. As a frontispiece, a photograph from the full length portrait of Beltrami, painted by Professor Enrico Scuri, and presented to the public. 2. An elegant dedicatory preface, addressed to the Society, and signed by the members of the city council. 3. The papers of Signore Rosa, before mentioned. 4. A lecture on the same subject as the preceding, delivered by Count Pietro Moroni, in 1856, before the Athenæum of Bergamo, and 5. Letters from Chateaubriand and other eminent men, addressed to him, also one from his own pen. From these sources, our knowledge of Beltrami has been perfected, and the facts so obtained are now given—mostly in the form of a close translation.