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Hansen, Peter Andreas (1795-1874) astronomer
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Autograph letter signed to J.C. Adams

Encloses testimonial for JCA for professorship of Geometry at Gresham Coll. Hansen's latest papers. Challis's paper.

Lubbock, Sir John William (1803-1865) 3rd Baronet, astronomer and banker

Autograph letter signed to J.C. Adams

Requests J.C.A. or someone appointed by him studies '8 Venus mean longitude - 13 Earth's mean longitude' in the Moon's motion, to settle who is right between Hansen and Delaunay. Will send cheque for Horrocks Memorial later. (See G.B.A. to J.C.A. 28th Oct. 1874).

Airy, Sir George Biddell (1801-1892) Knight, astronomer

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