CONTENTS. 



1. Results of calculations of the elements of an exterior planet, 



which will account for the observed irregularities in the motion 



of Uranus .......... 1 



Monthly Notices of the Royal Astronomical Society, Vol. VH. (1846), 

 pp. 149152 



2. An explanation on the observed irregularities in the motion of 



Uranus, on the hypothesis of disturbances caused by a more 

 distant planet; ivith a determination of the mass, orbit, and 

 position of the disturbing body ...... 6 



Memoirs of the Royal Astronomical Society, Vol. xvi. (1847), pp. 

 427460. Appendix to Nautical Almanac for 1851, pp. 265293 



3. Corrected elements of Neptune . . . . ... 54 



Monthly Notices of the Royal Astronomical Society (1847), Vol. vn., 

 pp. 244245 



4. New elements of Neptune . . . . . . . . 57 



Monthly Notices of the Royal Astronomical Society (May, 1847), Vol. VH., 

 pp. 268269 



5. Ephemeris of Neptune and meridian observations . . . 58 



Astronomische Nachrichten. xxvi. (1847). No. 604, pp. 51, 52. No. 

 616, pp. 241244 



6. The mass of Uranus ......... 62 



Monthly Notices of the Royal Astronomical Society, Vol. ix. (1849), 



pp. 159160 

 A. b 



