When Charles Joseph Panckoucke took over publication of Diderot's Encyclopedie in 1768, he promised to correct the cursory treatment of geography for which the first seventeen volumes had been criticized, with emphasis on the discoveries of the last 25 years. He employed Samuel Engel, a Swiss geographer, to write a series of articles about the northern regions and Didier Robert de Vaugondy to prepare ten maps to illustrate them. Engel rejected the De la Fonte Northwest Passage discoveries and believed the most sensible route from the Atlantic to the Pacific was along the north coast of Siberia. These maps illustrate the discoveries and various cartographic theories concerning the Pacific Northwest, East Asia and the North Pacific Ocean and include some of the most interesting comparative cartography of the eighteenth century

Four great maps from this interesting series of maps prepared by Didier Robert de Vaugondy for the Encyclopedie.

1) Carte de la Californie et des Pays Nord-Ouest separes de l'Asie per le detroit d'Anian… Two maps, one inset into the other. The inset map is based on a world map by Plancius issued in 1641, while the larger map is based on Visscher's map of 1612. Other than a recognizable Baja California, the maps are filled with the cartographic myths of the 17th century. The northwest coast bulges too far to the west. Both maps feature the seven cities of Cibola. (14 x 11.3") Ref: Wheat (TMW) #159, Wagner (NW) #632, and Pedley #473. Margins trimmed but still ample. Partially hand colored with slight bleed through of color on verso.

2) Carte Generale des Decouvertes de l'Amiral de Fonte, et autre Navigateurs Espagnols, Anglois et Russes… This is one of the more remarkable combinations of fact and fiction ever published. This map of the North Pacific and Northwest had as its source a 1708 article in the Monthly Miscellany that purported to be a newly discovered account of a voyage in 1640 by the Spanish Admiral, Bartholomew de Fonte. Thereafter, the newly presented information was changed and elaborated upon, notably by this series of maps which appeared in Diderot's Encyclopedia. In its concept, it promoted the hopes of a Northwest Passage and depicted the existence of Mer de l'Ouest or the Sea of the West. The tracks for the Russian exploration in 1741 and other explorers are traced in the Pacific. Inset at upper left is a small map, "Carte dressee Sur la lettre de l'Amiral de Fonte par l'Ecrivain de la Californie" detailing the purported track of Admiral de Fonte from the Pacific to Hudson Bay. (14.8 x 11.3") Ref: Hayes pp.26-27; Pedley #455.

3) Nouvelle Representation des Cotes Nord et Est de L'Asie, pour servir d'eclaircissement… Interesting map of the northeast coast of Asia depicting Kamchatka, Japan and Korea. It also shows part of what is present-day Alaska. The Tchutski (Chukotskiy) Peninsula stretches very close to the American landmass, hinting at a possible land bridge. Within the larger map are two insets (one within the other); each is a different depiction of Kamchatka. (10 x 15.5") Ref: Pedley #402.

4) Carte qui Represente les Differentes Connoissances que l'on a eves des Terres Arctiques…. Interesting chart consisting of four maps of the Hudson and Baffin Bay region showing the development of the region's cartography between 1650 and 1747. (15 x 11.8") Margins trimmed, but still ample.

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Condition: A

All issued folded, overall very good with any defects noted in description.