Letter, 1856 Mar. 23 [Roxbury, Mass?] to Mrs. J.W. Levering.
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Langley, S. P. (Samuel Pierpont), 1834-1906
http://n2t.net/ark:/99166/w6xf1qpq (person)
Samuel Pierpont Langley (1834-1906) was the third Secretary of the Smithsonian Institution. He also served as the director of the Allegheny Observatory and a professory of astronomy at the Western University of Pennsylvania (now known as the University of Pittsburgh). While at the Smithsonian he founded the Smithsonian Astrophysical Observatory....
Levering, J. W., Mrs.
http://n2t.net/ark:/99166/w62v623h (person)
