Also shows southern United States and northern South America. "Entered, according to Act of Congress, in the year 1852, by S. Augustus Mitchell, in the Clerk's Office of the District Court of the eastern district of Pennsylvania." Relief shown by hachures. At head of title: No. 16. Prime meridian: Washington. Includes text, distance list, and insets of "The Isthmus of Tehuantepec showing the proposed route from the Gulf of Mexico to the Pacific Ocean" and "The Isthmus of Nicaragua showing the proposed routes from the Caribbean Sea to the Pacific Ocean." "No. 16." Probably from Mitchell's School and Family Geography. 1852. Canal Zone Library map checklist number: 61. Scale [ca. 1:22,500,000] (W 122?--W 52?/N 40?--N 5?).
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