John Shaqi

The Grand Archive

Langley, S. P. (Samuel Pierpont)

2 volumes

Langley Memoir on Mechanical Flight, Parts I and II: Smithsonian Contributions to Knowledge, Volume 27 Number 3, Publication 1948, 1911Langley, S. P. (Samuel Pierpont)
History

Langley Memoir on Mechanical Flight, Parts I and II: Smithsonian Contributions to Knowledge, Volume 27 Number 3, Publication 1948, 1911

Langley, S. P. (Samuel Pierpont)

Aeronautics; Flight

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The New AstronomyLangley, S. P. (Samuel Pierpont)
Science

The New Astronomy

Langley, S. P. (Samuel Pierpont)

Astronomy

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