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Correspondence on transit of Venus, 1869 - 1879

Reference Code: GBR/0180/RGO 6/277

Scope and Contents

Correspondence on instruments used in observing the transit of Venus. The correspondents include J.C. Adams, J. Challis, W. De La Rue, G. Forbes, Messrs C. Frodsham and Co., Messrs Dent and Co., J.H. Dallmeyer and C.J. Corbett. The papers include lists of clocks, with some of their rates; a list of telescopes used in the transit of Venus observations; plans of plate holders for photoheliographs; two photographs of the Corbett 6 1/3" Equatorial Telescope; drawings and a diagram from a newspaper concerning the transit of Venus model; a manuscript of a paper by G. Forbes on 'The appearances presented by the model transit of Venus, mounted at the Royal Observatory, with a cloudy sky'; a paper by W. De La Rue 'On a piece of apparatus for carrying out M Janssen's method of time - photographic observations of the transit of Venus'; and general correspondence on the lending and returning of instruments.


  • Creation: 1869 - 1879


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 (


2 archive box(es) (2 boxes)

Language of Materials


Former / Other Reference


Finding aid date

2006-01-06 11:38:30+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