PORTION OF THE COSMOS. THE PLANETS. 303 



The 5th satellite of Uranus : W. Herschel, Feb. 9, 

 1790. 



The 6th satellite of Uranus: W. Herschel, Feb. 28, 

 1794. 



The 3d satellite of Uranus : W. Herschel, March 26, 

 1794. 



C. Nineteenth Century. 



CERES*: Piazzi, at Palermo, Jan. 1, 1801. 



PALLAS*: Gibers, at Bremen, March 28, 1802. 



JUNO* : Harding, at Lilienthal, Sept. 1, 1804. 



YESTA*: Olbers, at Bremen, March 29, 1807. 



(An interval of 38 years occurred without any planetary 

 discovery.) 



ASTR^A* : Hencke, at Driesen, Dec. 8, 1845. 



NEPTUNE : Galle, at Berlin, Sept. 23, 1846. 



The 1st satellite of Neptune : W. Lassell, at Starfield, 

 near Liverpool, Nov. 1846 ; Bond, at Cambridge, U.S. 



HEBE* : Hencke, at Driesen, July 1, 1847. 



IRIS* : Hind, London, Aug. 13, 1847. 



FLORA*: Hind, London, Oct. 18, 1847. 



METIS*: Graham, at Markree Castle, April 25, 1848. 



The 7th satellite of Saturn (Hyperion) : Bond, at Cam- 

 bridge, U.S., 16-19th Sept. 1848; Lassell, at Liverpool, 

 19-20th Sept. 1848. 



HYGEIA* : De Gasparis, at Naples, April 12, 1849. 



PARTHENOPE* : De Gasparis, at Naples, May 11, 1850. 



The second satellite of Neptune : Lassell, at Liverpool, 

 August 14, 1850. 



VICTORIA*: Hind, London, Sept. 13, 1850. 



EGERIA* : De Gasparis, at Naples, Nov. 2, 1850. 



