The map has title: A map of the middle British colonies in North America. First published by Mr. Lewis Evans...in 1755; and since corrected and improved, as also extended, with the addition of New England, and bordering parts of Canada: from actual surveys...By T. Pownall...
The original map was published at Philadelphia in 1755 in connection with a pamphlet by Evans having the following title: Geographical, historical, political, philosophical and mechanical essays. The first, containing An analysis of A general map of the middle British colonies in America...The "Topographical description", in addition to the map, includes numerous extracts from this essay of Evans.
Appendix: 1. The account of Capt. Anthony Van Schaick of the ground between the entrance of lake Chaplain at Crown point, and the mouth of Otter creek.--II. Captain Anthony Van Schaik's journal, 1756.--III. Captain Hobb's account of the way from No. 4. in New Hampshire, to the mouth of Otter creek.--IV. Extracts from the journal of Captain Harry Gordon...who was sent from Fort Pitt...to Illinois, in 1766.--V. Extract from Mr. Lewis Evan's journal. 1743.--VI. A journal of Christopher Giat's journey, began from Col. Cresap's at the old town of Potomack river, Maryland, October 31, 1750, continued down the Ohio, within 15 miles of the falls thereof; and from thence to Roanoak river in North Carolina, where he arrived May 19, 1751; undertaken on account of the Ohio company...