Speedily will be published, a map of the middle British colonies in North-America : first published by Mr. Lewis Evans, of Philadelphia, in 1755 : and since corrected and improved, as also extended, with the addition of New-England, &c. and bordering parts of Canada : from actual surveys now lying at the Board of Trade ... : with a topographical description of such parts of North-America as are contained in the map / by T. Pownall.