"The Empress Anne having directed her Senate to give instructions to M. Bering for the second voyage, that body believed that it could not act with success unless it obtained from the Academy the fullest information relative to the situation of the lands and seas to be traversed. Therefore the Academy was so ordered by the Senate, which enjoined on M. de l'Isle the construction of the map of which I speak, and, for a clearer understanding, an explanatory memoir; which being done, both map and memoir were presented to the Academy by the Senate. Consequently, there is no reason to doubt that, far from exciting the Russians to new discoveries, far from being the cause of Bering's second voyage, M. de l'Isle only worked under specific orders. It is quite another question whether or not the memoir contributed to the success of the expedition, which I will discuss later. However that may be, the Senate gave a copy of it, as well as of the map, to M. Bering. I took a second copy of the memoir, which enabled me to compare it with what M. de l'Isle has now said to us of it in his later memoir of Paris." These and other statements confirm those of de l'Isle as to the date of the map, in which year d'Anville engraved it (1732, or 1731 at the earliest), and likewise indicate that copies of both map and memoir were obtainable without great difficulty. An interesting note as to the authenticity and origin of the {216} chart of d'Anville, 1737, appears in the narrative of Adelung, who speaks with a certain air of authority. He says: "These Beering maps were, after the captain's return, sent from Russia to the King of Poland, who presented them to Mr. du Halde or, rather, to Mr. d'Anville, who made the charts for his work. Du Halde is therefore very correctly informed when he, in the Mémoires de Trevoux (737 pages, 2,389 f.) considers these charts questionable and imagines that they were merely made by d'Anville from Beering's journal." But further evidence from an unquestionable source is available as to date. The charts in du Halde's "China" were engraved between the years 1729 and 1734, and all but the general maps were completed prior to 1733. The date 1732 is assigned by d'Anville's colleague to the map of Bering's journey. Of these maps it is further said: "They form what is commonly known as d'Anville's Atlas of China. Nevertheless this geographer did not participate equally in the production of all. The detailed maps (of which the Bering map is one) were furnished by the Jesuits and he only supervised the engraving, but the general charts were entirely the work of d'Anville, who reconstructed and amplified them from all possible sources. They were reproduced at Hague under the title 'New Atlas of China,' etc., by M. d'Anville." These statements of d'Anville's colleague, M. Barbic du Bocage, are thus verified by du Halde, page lxix: