Lihat Juga

• National-Observatory, Washington. Observations of Asteroids, made with the Filar-Micrometer of the Equatoreal, byJ. Ferguson
  oleh: Ferguson, J.
  Terbitan: (1854)
• Observations of Titania made at the National Observatory Washington with the Filar Micrometer of the Equatorial, byJ. Ferguson. Communicated by Comd.Maury
  oleh: Maury,
  Terbitan: (1861)
• Observations of Circe, made at Alfred Observatory with the Filar-Micrometer and corrected for parallax
  oleh: Rogers, William A.
  Terbitan: (1868)
• Observations of the Planet Sappho made at the Cambridge Observatory with the Northumberland Equatorial and Square-Bar Micrometer
  oleh: Adams, J. C.
  Terbitan: (1887)
• Observations ofEncke's Comet, of the Comet III. 1861 (Tuttle's); of the Asteroids Elpis, Callypso, Echo and Euphrosyne, made with the Equatorial of the U. S. Naval Observatory
  oleh: Ferguson, James
  Terbitan: (1862)