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Delaunay, Charles-Eugène (1816-1872) astronomer and mathematician
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Copy of letter to C. Delaunay

See JCA's draft at 16/19/1. Another transcript at 36/22/3. Letter or extract of letter transcribed for MacAlister's biography.

Adams, John Couch (1819-1892) astronomer

Copy of letter to C. Delaunay

Translation into French of JCA's original. Probably done by or for Delaunay. See JCA's English draft at 16/14/3; transcript of same at 36/19/2. Letter or extract of letter collected for MacAlister's biography.

Adams, John Couch (1819-1892) astronomer

Copy of letter to C. Delaunay

Translation into French of JCA's original. Probably done by or for Delaunay. See JCA's English draft at 16/15/2; transcript of same at 36/20/1. Letter or extract of letter collected for MacAlister's biography.

Adams, John Couch (1819-1892) astronomer

Copy of autograph letter signed to Charles Delaunay

Another copy of 16/19/2. Authorisation for CD to publish JCA's expression of coefficient of principal term of the latitude [of the moon?]. Adds equation for principal inequality of the true latitude, and comparisons with Plana and Pontecoulant's results.

Adams, John Couch (1819-1892) astronomer

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