A map of the British colonies in North America : with the roads, distances, limits, and extent of the settlements, humbly inscribed to the Right Honourable the Earl of Halifax, and the other Right Honourable the Lords Commissioners for Trade & PlantationsMitchell, John, 1711-1768[1775?]Fourth ed.In bottom margin: Publish'd by the author Febry 13th 1755 according to act of Parliament.Includes text and inset "A new map of Hudson's Bay and Labrador from the late surveys of those coasts."Relief shown pictorially.Yale's copy stamped on bcartographic