For Bering's two voyages I consulted the report on the Russian Discoveries printed by order of the Empress and under the auspices of the Imperial Academy of Sciences at St. Petersburg, prepared by the distinguished geographer Müller, himself a member of the second expedition and personally acquainted with the actors in those scenes. No more authoritative printed document exists on the subject. The supposed errors animadverted upon by Mr. Lauridsen are either taken directly from Müller, or are inferences drawn from his report. Some of them the critic has misunderstood or misconstrued, which from the necessarily extreme condensation of my table is particularly easy. The expression of surprise that Bering passed through Bering Strait without seeing the Diomedes, was warranted by the fact that Bering nowhere mentions their name or speaks of seeing any islands in their location, nor are they on his earliest printed charts. This point, however, will be more fully dealt with later. If I were to re-write that chapter I should probably modify the criticisms of Bering's character which appear in it; but at the time it was written I was fresh from four years' exploration in the same region, and was particularly impressed with his failure to secure better results when to do so would have been so easy, as well as directly in the line of his duty.] Review: Bulletin of the American Geographical Society for 1885. New York, the Society, 1885. pp. 285-298. This review forms part of a "Reply to criticisms upon the voyage of the Vega around Asia and Europe," by Baron A. E. von Nordenskiold, translated from the Swedish by Vere A. Elfwing. It is addressed only toward certain points in Lauridsen's work, and contains valuable corrections of certain errors therein, and information in regard to the work of Strahlenberg and the other early cartographers of Eastern Siberia. It is a translation of a paper published in _Ymer_ for 1885, to which for exact accuracy reference should be made. Russian explorations, 1725-1743. Vitus Bering: the discoverer of Bering Strait. By Peter Lauridsen (etc.). Revised by the author and translated from the Danish by Julius E. Olson (etc.). Chicago, S. C. Griggs & Company, 1889. 8° xvi, 223 pp., 2 cuts, 2 folding sheets of maps.