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Astronomical methods and instruments, 1874 - 1875

Reference Code: GBR/0180/RGO 6/174

Scope and Contents

Correspondence on new inventions and techniques, as well as trials of existing equipment, including the Greenwich spectroscope (with plans, drawings and suggestions), the transit circle, the altazimuth, the double edge micrometer and others. The correspondents include J.A. Broun, W. Huggins, W.H.M. Christie and W. De La Rue. There are also scales for old micrometers, a water pressure card, sketches for eyepieces and two photographs of a German heliometer.


  • Creation: 1874 - 1875


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


Former / Other Reference


Finding aid date

2006-01-06 11:34:56+00:00

Includes index.

Repository Details

Part of the Cambridge University Library Repository

Cambridge University Library
West Road
Cambridge CB3 9DR United Kingdom