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Correspondence on astrographic equatorials, 1887 - 1891

 File
Reference Code: GBR/0180/RGO 7/43

Scope and Contents

Correspondence concerning astrographic equatorials for the Greenwich and Cape observatories:

Official and unofficial correspondence with the Admiralty concerning the photographic mapping of the heavens, the transfer of the telegraphic wires to the Post Office, and the extra expense of re-determining the longitude between Paris and Greenwich telegraphically, 1887.

Official and unofficial correspondence with the Hydrographer of the Navy, A. Milner and Sir Howard Grubb concerning the photographic mapping of the heavens and a question about it asked in the House of Commons, 1887-1888.

Correspondence with the Admiralty and H.H. Turner concerning the order to Sir Howard Grubb to construct photographic telescopes, 1888.

Correspondence with the Admiralty regarding the payment for the photographic telescopes, 1889-1890.

Correspondence with Sir Howard Grubb concerning experiments and suggestions for the object glass, including a copy of a letter from Messrs Schott and Son on the employment of patent glass for photographic objectives, 1887-1888.

Correspondence with Grubb concerning arrangements for the payment and construction of an experimental object glass, with estimates for the production and erection of the photographic telescope, 1888.

Correspondence with Grubb accepting his tenders for telescopes for Greenwich and the Cape, and correspondence on the mechanical details of the instruments, 1888-1889.

Correspondence with Grubb concerned principally with optical matters, 1889-1890, including receipt of the 4" and 6" experimental object glasses and photographs taken with them.

Correspondence with Grubb concerning the charges for workmen's time, the division of the declination circle, the claim for the second instalment of the telescope for the Cape Observatory, and the dispatch of a telescope to the Royal Observatory at Greenwich, 1890.

Correspondence with Grubb giving details of the telescope for the Cape Observatory, a receipt for a 10" object glass and dark slide, and general correspondence on the mounting of the telescope and the dispatch to the Cape of the Cape Telescope, 1890-1891.



















Dates

  • 1887 - 1891

Conditions Governing Access

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 mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).

Extent

1 volume(s) (1 volume)

Language of Materials

English

Former / Other Reference

C5

Finding aid date

2006-03-30 10:40:42+00:00

Includes index.

Creator

Repository Details

Part of the Cambridge University Library Repository

Contact:
Cambridge University Library
West Road
Cambridge CB3 9DR United Kingdom


The UK Archival Thesaurus has been integrated with our catalogue, thanks to Kings College London and the AIM25 project for their support with this.