Scale [ca. 1:15,840,000. 1 inch to approx. 250 miles] (W 167°- -W27°/N 85°--N 10°) ; 1 map : hand col. ; 53 x 40 cm ; Hand colored ; Prime meridians: Greenwich and Washington, D.C. ; Includes mail routes and proposed railroad routes; Has decorative border ; Plates 15 and 16 from Johnson's new illustrated family atlas of the world ; Partial geographical index on verso ; Alternate title: North America Johnson and Ward