Langley, S. P. (Samuel Pierpont), 1834-1906. Annals of the Astrophysical Observatory of the Smithsonian Institution / by S.F. Langley ; aided by C.G. Abbot.

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Langley, S. P. (Samuel Pierpont), 1834-1906.

Annals of the Astrophysical Observatory of the Smithsonian Institution / by S.F. Langley ; aided by C.G. Abbot.

Smithsonian Institution

Astrophysics