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Astronomical and Meteorological Observations made at the United States Naval Observatory during the year 1869, | Bok | q522.
Sands, B.F. / - Washington, : Government Printing Office,, 1872. [Bok]. - 331 s. - Språk: Engelsk | Sands, B.F. | 1872 |
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Astronomical and Meteorological Observations made at the United States Naval Observatory during the year 1868, | Bok | q522.
Sands, B.F. / - Washington, : Government Printing Office,, 1871. [Bok]. - 494 s. - Språk: Engelsk | Sands, B.F. | 1871 |
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Reports on Observations of the Total Eclipse of the Sun,August 7,1869, | Bok | q523.7
Sands, B.F. / - Washington, : Government Printing Office,, 1870. [Bok]. - 217 s. - Språk: Engelsk | Sands, B.F. | 1870 |
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Zones of Stars observed at The United States Observatory with the Meridian Transit Instrument, | Bok | q523.8
Sands, B.F. / - Washington, : Government Printing Office,, 1872. [Bok]. - 271 s. - Språk: Engelsk | Sands, B.F. | 1872 |