CARTE GENERALE DES DECOUVERTES DE L'AMIRAL FONTE ET AUTRES NAVIGATEURS ESPAGNOLS ANGLOIS ET RUSSES POUR LA RECHERCHE DU PASSAGE A LA MER DU SUD
Cartographer: DE L'ISLE Family
Date: 1772 Paris
Size: 30*38 cms
From Diderot's Encyclopedia ..
Much sought after map
Very interesting map of the Northwest Coast, showing De L'Isle's conjectural northwest coast, based upon De Font and Russian Discoverers, including the Bay of the West.
The map is part of the great mid-18th Century debate, from by the reports of JN De L'Isle of the Russian discoveries in the region prior to 1750, which he obtained during his time working in St. Petersburg. The debate was fed by the maps of Buache and Jefferys, which provided radically different accounts of the coast. Ulimately, the discoveries during Cook's first voyage put and end to the debate. This map tracks the voyages of Tchirikow, Frondat, Bering, and others Russians during the first part of the 18th Century and credits De Fuca, d'Aguilar and De Font with discoveries on the NW Coast. The large Sea of the West is drawn from Buache's model, with numerous other wide watercourses both through the central continent and above the arctic circle, all richly annotated with source information.