Fascinating study in the comparative cartography of the West Coast of North America and Northeast Coast of Asia, based upon Buache.
The various Russian discoveries between 1731 and 1742 are shown in the upper map, including the Sea of the West and various explorers routes and notes. The bottom map is based upon a Japanese map taken by Kaempfer back to Europe. It depicts a fascinating and wholly different approach to the two regions.
Diderot's work is part of a 10 map supplement to his Encyclopedia, and provides one of the most fascinating studies in contemporary comparative cartography which can be obtained by collectors, much of which is dedicated to the NW Coast.
Didier Robert de Vaugondy (ca. 1723-1786) was the son of prominent geographer Gilles Robert de Vaugondy and Didier carried on his father’s impressive work. Together, they published their best-known work, the Atlas Universel (1757). The atlas took fifteen years to create and was released in a folio and ¾ folio edition; both are rare and highly sought-after today. Together and individually, father and son were known for their exactitude and depth of research.
Like his father, Didier served as geographer to King Louis XV. He was especially recognized for his skills in globe making; for example, a pair of his globes made for the Marquise de Pompadour are today in the collection of the Municipal Museum of Chartres. Didier was also the geographer to the Duke of Lorraine. In 1773, he was appointed royal censor in charge of monitoring the information published in geography texts, navigational tracts, and travel accounts.