Interesting early map of North America, published shortly after Cook's explorations on the NW Coast of America and shortly before Vancouver's and MacKenzie's expedtions.
The Arctic Sea is still largely unknown and the shape of Alaska reflects the transition between Cook's reports and Vancouver. Some of the more interesting placenames along the NW Coast of America include the Sound of Sir Charles Middleton.
Middleton explored Hudson Bay in search of the Northwest Paasage and was comptroller of the British Navy at the time of the Nootka Crisis. Duncan adopted the name Sir Charles Middleton Sound (for Fitz Hugh Sound) in 1788. The name was adopted by Arrowsmith in 1790, although Faden did not use this name and instead went with James Colnett's naming of the sound. Colnett had explored the region between 1786 and 1789.