Observations of nebulae and clusters of stars. Made with the six-foot and three-foot reflectors at Birr Castle from the year 1848 up to the year 1878.

Ижил төстэй зүйлс

• Index Catalogue of books and memoirs relating to nebulae and clusters, etc.
  -н: Holden, Edward Singleton
  Хэвлэсэн: (1877)
• The Distribution of stars in galactic regions in relation to the dark nebulae.
  -н: Schalén, Carl
  Хэвлэсэн: (1932)
• Observations of double stars made at the U.S. Naval Observatory.
  -н: Hall, Asaph
  Хэвлэсэн: (1881)
• Nebulae and galaxies
  -н: Hack, Margherita
  Хэвлэсэн: (1964)
• The Realm of the nebulæ.
  -н: Hubble, Edwin
  Хэвлэсэн: (1936)