v iii CONTENTS. 



PAGE 



/ O 



7. Appendix on the discovery of Neptune . 



Liouville's Journal de Mathematiques, New Series, Tome n. (1876), 

 pp. 8386 



8. Elements of the comet of Faye 



Monthly Notices of the Royal Astronomical Society, Vol. vi. (1844), 

 pp. 2021 



9. The orbit of the new comet . 6 ? 



Times, October 15, 1844 



10. The relative position of the two heads of Bielas comet 68 



Monthly Notices of the Royal Astronomical Society (March 14, 1846), 

 p. 83 



11. On the application of graphical methods to the solution of 



certain astronomical problems, and in particular to the 

 determination of the perturbations of planets and comets 70 



Report of the British Association for 1849, (pt. 2), p. 1 



12. Elements of Comet II. 1854 71 



Monthly Notices of the Royal Astronomical Society, Vol. xiv. (1854), 

 pp. 251252 



13. Observations of Comet II. 1861 72 



Monthly Notices of the Royal Astronomical Society, Vol. xxn. (1862) 

 and Astronomische Nachrichten, LVII. (1862), col. 235 240 



14. On the orbit of y Virginis . . . . . . . . 78 



.ffides Hartwellianse, letter to Admiral Smythe, June, 1851, pp. 340 342 



15. On the total eclipse of the Sun, 28 July 1851, as seen at 



Frederiksvaern ....... . . 80 



Memoirs of the Royal Astronomical Society, Vol. xxi. (1852), pp. 

 101107 



16. On an important error in Bouvard's tables of Saturn . . 87 



Memoirs of the Royal Astronomical Society (1849), Vol. xvn., pp. 

 1 2, and Monthly Notices of the Royal Astronomical Society 

 (1847), Vol. vii., pp. 251252 



