Series II: Scrapbooks Subseries 1: Design and Construction
Series III: Aeronautical Research and the Aerodromes

This series consists of notes, data, drawings and memoranda from Langley's aeronautical research at both the Smithsonian and the Allegheny Observatory. Subseries 2 contains material used in various Smithsonian exhibitions of the Langley Aerodromes. Other drawings are included in Series IX. Additional notes and drawings are included in Series XI.



Series II: Scrapbooks Subseries 1: Design and Construction
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