National Geographic : 1892 Feb 19
230 General A. W. Greely-Bering's First Voyage. " Likewise, both by a sheet of astronomicalobservations made bh Bermng rWhich came to me later, and by the saine letters of M. de l'Isle, I knew that the mouth of the river of Kamtchatka was found by astronomical determi nation to be in latitude 56° and some minutes. " Bering in his navigation doubled the southern point of this continent [Kamshatka] in latitude 51° 10", as is expressly noted in the sheet of observations which is now before me. " But though the solution of the difficulty in the case of the Land of .Ieco may be very simple and natural, yet it was not obvious to me, it may be said, for Bering's voyage and observations caused me to recur to this subject, and I can no longer doubt that the eastern coast of Tartary should be moved to the east as tiar as the maps of the Jesuits first indicated ; for although M. de Strahlenberg in his excellent map of Siberia shows only 65° of longitude between Tobolsk and Okhotsk, and there are even less in de l'Isle's map of Tartary, yet Bering's map indicates that there are 74°. " It was found that it (Ohkotz) is 25° off of the meridian of Peking, which the observations of P. Gaubil placed in 113° fifty-odd minutes front Paris, so that it closely approximates the 139° which we have found it to be from Bering's observations. This determination does not differ much from the result of some astronomical observations, which, as I learn from China, M. de l'Isle, now in Russia, contempllated using in order to ascer tain approximately the longitude of Kamtchat. The observation upon which I place the most dependence, and which likewise gives the greatest difference, is of an eclipse of the moon of February 25, 1728, of which the end was observed on the west coast of Kamtshat in latitude 520 46' N., Sirius having an altitude of 19° 18 to the west, wherefrom M. de l'Isle calculated that the true time answered to 6h. 52m. p. m. "This eclipse, the end especially, fell throughout Europe in the daytime, but having been observed at (arthagena, West Indies, by D. Jean Herrera, where it ended at 3h. 34m. a. m ., a difference of 8h. 42m. is deduced be tween the meridians of Carthagena and the coast of Kamtshat." It is thus evident that Bering observed an eclipse of the moon in Kam shatka, and that the observations came into the hands of M. d'Anville. A.W.G. JANsUARY 21, 1892.
1892 Mar 31
1891 May 29