A list of the books forming the Langley aeronautical collection deposited in the Library of Congress by the Smithsonian institution, March 1930.

By Smithsonian Institution..
Washington, D.C., 1930 .
1 p. l., 69 p. , Photographic reproduction, reduced, of the catalogue cards covering the collection. | Arranged alphabetically, 21 cards to a page. | Title-page type-written. 31 cm..

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The internal work of the wind /

By Langley, S. P..
Washington : Smithsonian institution, 1893 .
iii, 23 p. : 34 cm..

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A list of the books forming the Langley aeronautical collection deposited in the Library of Congress by the Smithsonian institution, March 1930.

The internal work of the wind /