A South American Aerial Rope Railroad
By the English Correspondent of Scientific American

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By the English Correspondent of Scientific American
A Description of the Gasoline and Electric Automobiles Now Used for Public Transportation
The Relation of the Government to the Development of Submarine Vessels.-Il
A Complete Review of American Development- in a New Enterprise
New Ways of Building Steamers for Special Purposes
Raised Beaches and their Cause
The Story of a Harbinger of Spring
A Nalternation of Generations