Shows locations of some battlefields in U.S. War with Mexico.; "Entered according to the Act of Congress in the year 1846 by S. Augustus Mitchell, in the Clerk's office of the District Court of the Eastern District of Pennsylvania."; Prime meridians: Washington and Greenwich.; Includes text and inset: The late battlefield [Monterrey, Mexico]. Scale [approximately 1:30,000]. 43 x 63 centimeters Scale approximately 1:7,300,000 General Map Collection