Arequipa Pyrheliometry
Washington DC: Smithsonian, 1916. Paperback. 1916, Pamphlet, 24 pp. Good copy: wraps soiled and edgeworn; Moderate soil and staining throughout. Unmarked text.
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Results 1 - 5 (of 5)
A Group of Solar Changes
Washington DC: Smithsonian, 1927. Paperback. 1927, Pamphlet, 16 pp. Very Good copy: wraps lightly soiled and edgeworn; Unmarked text.
The Radiation of The Planet Earth to Space
Washington DC: Smithsonian, 1929. Paperback. 1929, Pamphlet, 12 pp. + fold-out in rear. Very Good copy: wraps and insides lightly soiled and edgeworn.
Samuel Pierpont Langley (1934)
Washington DC: Smithsonian, 1934. First Printing. Wraps. 8vo, softcover, very good to fine copy with minimal wear and toning. 57 pp, 6 plates. Discusses Langley's contributions to astronomy, astrophysics and aeronautics.
On The Distribution of Radiation Over The Sun's Disk and New Evidences of the Solar Variability
Washington DC: Smithsonian, 1916. Paperback. 1916, Pamphlet, 24 pp., with one plate. Very Good copy: wraps and insides lightly soiled and edgeworn.
Results 1 - 5 (of 5)