Shows Northwestern America and the northeastern tip of Asia, including an enormous and prominent false "Mer l'Ouest" as well as a clear North West Passage; based on the rare De L'Isle map which supposedly chronicled the discoveries of one "Admiral...
Relief shown by hachures. Shows western U.S., Canada and Alaska, and northeastern Asia. Shows tracks of various voyages. Inset: Carte dressee sur la lettre de l'Amiral de Fonte par l'Ecrivain de la Californie [details of the Anian Strait...
A reduced version of the De l'Isle/Buache map published by the Prussian Academy of Science & Literature, published by Euler, a German mathematician who was with the St. Petersburg Academy. Shows routes of Russian discoveries in 1723, 1732, and...
Complete title: The great probability of a North West Passage : deduced from observations on the letter of Admiral de Fonte, who sailed from the Callao of Lima on the discovery of a communication between the South Sea and the Atlantic Ocean....