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Astronomical methods and instruments, 1878 - 1887

Reference Code: GBR/0180/RGO 6/177

Scope and Contents

Correspondence with Airy and W.H.M. Christie concerning new astronomical techniques; requests for instruments and information; the testing of various instruments, such as a siderostat, telescopes and a driving clock; and the finding of the longitude. The correspondents include W. De La Rue, W. Huggins, S.P. Langley, Sir R.S. Ball, R.L.J. Ellery, E.K. Abbe, H.H. Turner and various lesser known scientists. There is a photograph of a negative of a plan of Flamsteed's equatorial sector, a photograph of a transit circle and six photographs of parts of a chronograph destined for Japan. The papers include material on Ertel's transit instrument; E.K. Abbe on settling time and longitude, written in German; and a translation into Spanish by J. Salozar of astronomical problems involving longitude.


  • Creation: 1878 - 1887


Conditions Governing Access

From the Management Group:

Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (


1 archive box(es) (1 box)

Language of Materials




Spanish; Castilian

Former / Other Reference


Finding aid date

2006-01-06 11:35:02+00:00

Includes index.

Repository Details

Part of the Cambridge University Library Repository

Cambridge University Library
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Cambridge CB3 9DR United Kingdom