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Challis, James (1803-1882) astronomer and physicist MacAlister, Sir Donald (1854-1934) 1st Baronet, physician and medical administrator
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Copy of letter to G.B. Airy

Neptune. Transcript from Airy's correspondence files in RGO Archives, copied for D.MacAlister 1893-1894.

Challis, James (1803-1882) astronomer and physicist

Typescript copy of article

Typescript copy, made for MacAlister's biography of Adams, of article "An account of observations undertaken in search of the planet discovered at Berlin on Sept. 23, 1846", from the Memoirs of the RAS, Vol. 16 p.415. [Neptune]

Challis, James (1803-1882) astronomer and physicist

Copy of letter to G.B. Airy

Neptune. Transcript from Airy's correspondence files in RGO Archives, copied for D.MacAlister 1893-1894.

Challis, James (1803-1882) astronomer and physicist