The zodiacal light: Observed February 20, 1876
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Aurora Borealis: As observed March 1, 1872, at 9h. 25m. P.M.
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Part of the Milky Way: From a study made during the years 1874, 1875 a...
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Group of sun spots and veiled spots: Observed on June 17th 1875 at 7 h...
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The great comet of 1881: Observed on the night of June 25-26 at 1h. 30...
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The November meteors: As observed between midnight and 5 o'clock A.M. ...
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