Langley memoir on mechanical flight von Langley, Samuel P. 1834-1906, Langley, Samuel P. 1834-1906, Manly, Charles M.

"Good seeing" von Langley, Samuel P. 1834-1906

The new spectrum von Langley, Samuel P. 1834-1906

Researches on solar heat and its absorption by the earth's atmosphere a report of the Mount Whitney Expedition von Langley, Samuel P. 1834-1906

Experiments with the Langley aerodrome von Langley, Samuel P. 1834-1906

Memoir of George Brown Goode 1851 - 1896 ; read before the National Academy, April 21, 1897 von Langley, Samuel P. 1834-1906

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The temperature of the moon from researches made at the Allegheny Observatory von Langley, Samuel P. 1834-1906

On the cheapest form of light von Langley, Samuel P. 1834-1906, Very, Frank W. 1852-1927

Story of experiments in mechanical flight von Langley, Samuel P. 1834-1906

The internal work of the wind von Langley, Samuel P. 1834-1906

Experiments in aerodynamics von Langley, Samuel P. 1834-1906