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practicability, 1850

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Aerial navigation. It is extensively known that the undersigned has by theory and practical experiment so fully proved and demonstrated the practicability of aerial navigation, that all who have examined the subject are convinced ... It appears

Aerial navigation. It is extensively known that the undersigned has by...

Aerial navigation. Available also through the Library of Congress web site in two forms: as facsimile page images and as full text in SGML. Printed Ephemera Collection; Portfolio 200, Folder 6.