"The Physical Features of North & South America, Showing the Mountains, Table-Lands, Plains, and Slopes", Johnston, Alexander K.
Subject: Western Hemisphere
Period: 1852 (dated)
Publication: The Physical Atlas of Natural Phenomena
Color: Hand Color
24.3 x 20.3 inches
61.7 x 51.6 cm
A finely engraved chart that is filled with information. The map of North America has good detail of the Rocky Mountains, the Great Basin, topography and watershed. The cross-sections which fill the lower portion emphasize the geological nature of the North American continent. More detail is shown with insets: Island of Trinidad; Table-Land of Quito; Enlarged Map of the Andes of Bolivia; Volcano of Jorullo; Section of the Table-land of Bolivia; and Section of the Table-land of Quito. Another section indicates the complex geology of the Appalachian region. Surrounded by a fine keyboard-style border.
There are some faint spots at center and a small centerfold separation at bottom that is confined to the blank margin.