Represents the New Brunswick / Maine border as settled by the Webster-Ashburton Treaty in 1842. Includes "Old Boundary as Claimed by Great Britain" and "New Boundary Claimed by Great Britain" and "Boundary Claimed by The United States" and "Boundary as Settled by the Treaty Award of the King of Holland".
Includes a small inset map of Sable Island with the following note: "The N. W. end of the Isle of Sable bears from the Halifax or Sambro Light EbyS 125 miles distant." There are soundings present for most ports, harbours and straits and information on mail routes in the upper right. The outline color marks county and township boundaries and are very different from the present day boundaries. If you look closely there are interesting notes related to geography, navigation and tides. For example, the note over present day Inverness and Victoria counties reads "Land very little known".
This map presents an early example of a common issue with atlas maps of the 19th century: once the map has been detached from the atlas, it can be every difficult to determine which atlas it actually came from because plates were resold and re-purposed extensively. In this case there seem to be only 2 choices: the ca.1831 Edinburgh geographical and historical atlas published by Daniel Lizar and the ca.1842 Lizars' Edinburgh geographical general atlas published by William H. Lizars (Daniel's son). According to Phillips (761, 782) the plate numbers are even the same. Walter was certain this was the 1842 version and this is likely the case as the outline colour of our map differs from the outline colour of the 1831 map available on the David Rumsey web site.