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

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

Autograph letter signed to Eliza Adams

Encloses one letter of JCA's to LeVerrier, found by his daughter. Contact being made with Delaunay's family. Details of a paper to be included in the Collected Papers. Suggestion for a house which might suit EA.

Cayley, Arthur (1821-1895) mathematician

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