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Solar Protuberances. Observed on May 5, 1873 at 9 h. 40 m. A.M.
Solar Protuberances. Observed on May 5, 1873 at 9 h. 40 m. A.M.

Total Eclipse of the Sun. Observed July 29, 1878, at Creston, Wyoming Territory.
Total Eclipse of the Sun. Observed July 29, 1878, at Creston, Wyoming Territory.

The Zodiacal Light. Observed February 20, 1876.
The Zodiacal Light. Observed February 20, 1876.

The Planet Jupiter. Observed November 1, 1880, at 9 h. 30 m. P.M.
The Planet Jupiter. Observed November 1, 1880, at 9 h. 30 m. P.M.

The Planet Saturn. Observed on November 30, 1874, at 5 h. 50 m. P.M.
The Planet Saturn. Observed on November 30, 1874, at 5 h. 50 m. P.M.

Part of the Milky Way. From a Study made during the years 1874, 1875 and 1876.
Part of the Milky Way. From a Study made during the years 1874, 1875 and 1876.

Star Cluster in Hercules. From a Study made in June, 1877.
Star Cluster in Hercules. From a Study made in June, 1877.

Group of Sun Spots and Veiled Spots. Observed on June 17th 1875 at 7 h. 30 m. A.M.
Group of Sun Spots and Veiled Spots. Observed on June 17th 1875 at 7 h. 30 m. A.M.

Solar Protuberances. Observed on May 5, 1873 at 9 h. 40 m. A.M.
Solar Protuberances. Observed on May 5, 1873 at 9 h. 40 m. A.M.

Total Eclipse of the Sun. Observed July 29, 1878, at Creston, Wyoming Territory.
Total Eclipse of the Sun. Observed July 29, 1878, at Creston, Wyoming Territory.