"This map I had the honor of presenting to the Empress Anne and the Senate, in order to animate the Russians to undertake these discoveries, and it took effect, this princess ordering a second voyage to be made according to the plan which I had drawn up for it." "Two maps," he adds, were presented to the Academy in Paris, "one being a copy of the map which I had drawn at St. Petersburg, 1731, on Captain Bering's first voyage, and had the honor of presenting to the Empress Anne and the Senate, with a manuscript memoir explaining its use and construction." The other map (from which the lithograph before you was lately reproduced) was, according to de l'Isle, only changed by adding the later discoveries of Bering and his lieutenants. De l'Isle further says of this chart: "The second manuscript map which I laid before the Academy at Paris was in all respects like the former, only with the advantages of the new discoveries made since 1731." Ph. Buache, the French geographer, made for de l'Isle a reduced copy of the second chart, and it is supposed that the map before you is a substantial reproduction of that copy. In the preface to de l'Isle's scattered essays, 1738, St. Petersburg, page 2, we find: "Aiant comparé la situation du Kamschatka et des pais voisins, avec celle de la Chine, du roiaume de Corée, du Japon, et de la terre d'Yeco, qui m'étoit connue d'ailleurs, je me suis fait un sistème, & j'ai dressé l'an {214} 1731, une carte de cette extremité orientale de l'Asie. J'ai marque aussi sur cette carte les dernières terres connues de l'Amerique, les plus voisines de cette partie septentrionale de l'Asie, afin de faire voir ce qui restoit encore d'inconnu entre-deux. On trouvera dans ce recueil une reduction de cette carte, avec le Mémoire que j'ai dressé dans ce temsla, & lu a l'Academie, dans lequel je rends raison de la construction de cette carte." Only one volume of de l'Isle's essays appeared, so that the map and memoir promised in the introduction were never, so far as can be learned, published in their original form. The statements made by de l'Isle, however, unless definitely refuted, should be given full credit, seeing that the work was published by the Academy of Sciences at St. Petersburg, to which the map and memoir were presented, as is claimed, only seven years earlier. A doubt does, however, exist as to the date of the map made by de l'Isle. On this point Adelung, in his "History of Northeastern Voyages," Halle, 1768, page 569, evidently quoting from Müller, says: