No. 34. The restoration of Lalande's suppressed manuscript observation of 

 Neptune of May 8, 1795, by M. Victor Mauvais. 



No. 35. The computation of new elements of Neptune, by Adams, based on 

 the Lalande observations, confirming mine of February 6, and the revision of 

 his theory of Neptune, according to his remark, "justifying some skepticism as 

 to former conclusions." 



No. 36. The remark of Prof Airy on the same occasion, that " much was 

 owing to chance" in the discovery of Neptune. 



No. 37. The demonstration by Prof Peirce, in the summer of 1847, of the 

 impossibihty of explaining the normal places of Uranus and Neptune by any 

 assignable mass of the latter, if we assume its period to be double that of Uranus. 



No. 38. The computation of the perturbations of Neptune for the historical 

 dates of the normal places, on the hypothesis of the double period of Uranus, 

 and with the best elements obtained by me previous to this work by Prof 

 Peirce, communicated to me early in November, 1847. 



No. 39. Computation of the first elliptic elements of Neptune, by the author 

 of this memoir, from the normal places in 1795, 1846, and 1847, using Peirce's 

 first tables of the perturbations, communicated to Prof Peirce in the latter pait 

 of November, and inserted in his memoir of December 7, 1847. 



No. 40. New computation of tables of the perturbations of Neptune on the 

 basis of my recent and first elliptic elements, by Prof Peirce, communicated to 

 me in a letter dated January 12, 1848, and read to the American Academy, 

 April 4 of that year. 



No. 41. Discussion of 650 observations of Neptune, formation of new normal 

 places, and computation of the second elliptic elements, communicated to Prof 

 Peirce, March 6, 1848. 



No. 42. The discovery of Neptune's satellite by Mr. W. Lassell, of Liverpool, 

 in 1846. The confirmation of this discovery, and the measures of its elongation, 

 in the autumn of 1847, by Messrs. Lassell, Bond, Struve, and Mitchel. 



No. 43. Completion of the theory of Uranus, and perfect representation of all 

 the historical normal places of Neptune, by Prof Peirce, using as a basis the 

 Messrs. Bond's measures of the elongation of its satellite and ray second elliptic 

 elements, communicated April 4, 1848, to the American Academy. 



Note to No. 34. — Comptes Rendus, April 19, 1847. 



Note to Nos. 35 and 36.— Proceedings R. A. Soc., Vol. VII, for June 11, 1847. 



Note to No. 37.— Letter to S. C. Walker. 



Note to No. 38. — Proceedings A. A. A. S. , December 7, 1847. 



Note to No. 39 Proceedings A. A. A. S., December 7, 1847. 



Note to Nos. 41 to 43 — Proceedings A. A. A. S., April 4, 1848. 



