- Adams/Box 35-38/Box 36/25/1-2
- Item
- 12 Aug. 1872
Part of Papers of John Couch Adams
See JCA's drafts at 16/22/2-3. Letter or extract of letter transcribed for MacAlister's biography.
Adams, John Couch (1819-1892) astronomer
Part of Papers of John Couch Adams
See JCA's drafts at 16/22/2-3. Letter or extract of letter transcribed for MacAlister's biography.
Adams, John Couch (1819-1892) astronomer
Part of Papers of John Couch Adams
Explanation of how G.B.A. has misunderstood Delaunay's lunar formula. Agrees about stability of solar system. Would like to see model of transit of Venus.
Adams, John Couch (1819-1892) astronomer
Part of Papers of John Couch Adams
Has been checking errors in G.B.A's Numerical Lunar Theory: cause is Delaunay's coefficients of parallax. Explains why.
Adams, John Couch (1819-1892) astronomer
Part of Papers of John Couch Adams
Details of forthcoming sale of Babbage's mathematical books. Death of Delaunay. Letter or extract of letter transcribed for MacAlister's biography.
Adams, John Couch (1819-1892) astronomer
Copy of letter to W. De La Rue
Part of Papers of John Couch Adams
[JCA's comments on De La Rue's speech on awarding Gold Medal of RAS] Acknowledges copy of Hansen's letter sent. Disagrees with H's assertion that he never contested JCA's theory of the secular acceleration of the moon: H caused LeVerrier to attack JCA and Delaunay, and is now adapting his own theory without admitting it might be wrong.
Adams, John Couch (1819-1892) astronomer
Copy of letter to W. De La Rue
Part of Papers of John Couch Adams
Comments on De La Rue's speech on awarding Gold Medal of RAS to JCA. Whether a quotation from Herschel should be included. Whether LeVerrier should be mentioned in light of his and Delaunay's part in the controversy over the secular variation of the moon's mean motion. Accuracy of Hansen's and Plana's theories. Encloses copy of Delaunay's letter.
Adams, John Couch (1819-1892) astronomer
Draft? autograph letter signed to Charles Delaunay
Part of Papers of John Couch Adams
Letter of introduction for Pierce. Plana convinced of JCA's and CD's expression of the secular acceleration of moon's mean motion. Hansen and LeVerrier might yet be convinced.
Adams, John Couch (1819-1892) astronomer
Draft? autograph letter signed to Charles Delaunay
Part of Papers of John Couch Adams
Another copy of 16/20/2. Appreciation of CD's explanation of discrepancy between value of secular acceleration of moon's mean motion, and that derived from ancient eclipses. Likely to be attacked by Pontecoulant.
Adams, John Couch (1819-1892) astronomer
Draft? autograph letter signed to Charles Delaunay
Part of Papers of John Couch Adams
Congratulations on CD's appointment as Director of the Imperial Observatory. JCA's gratification at awarding medal of RAS to CD.
Adams, John Couch (1819-1892) astronomer
Draft autograph letter signed to Charles Delaunay
Part of Papers of John Couch Adams
Another draft for same letter at 16/14/2. See 36/16/1 for French translation, of same letter. Acknowledgement of offer of corresponding membership of [French] Academy of Sciences. Sends offprints of published papers. Description of work forthcoming. Defence of work on lunar theory against Plana.
Adams, John Couch (1819-1892) astronomer