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Correspondence with instrument-makers, 1898 - 1915

Reference Code: GBR/0180/RGO 7/74

Scope and Contents

Correspondence regarding accounts held with various instrument-makers:

Correspondence with Troughton and Simms, 1898-1909, including a summary of the annual cost of cleaning instruments.

Correspondence with the Improved Electric Glow Lamp Company concerning the re-silvering and polishing of mirrors, 1899-1900.

Correspondence with Victor Kullberg concerning an estimate for the cost of repairs to Osler's anemometer, 1903.

Correspondence with Peter Heele, manufacturer of scientific instruments, concerning an instrument he wished to sell but which the Royal Observatory rejected, 1904.

Correspondence with Negretti and Zambra concerning a defect in a thermometer made by them and its repair, 1907.

Correspondence with the '"Vega" Societe Anonymede photographie' concerning a dark slide for observing the Sun, 1907.

Correspondence with Troughton and Simms concerning the late delivery of orders and an order for aluminium alloy rods, 1907-1908.

Correspondence with Siemens Brothers and Co. concerning a previous order and containing a new order for tungsten wire, 1913.

Bills and accounts from Troughton and Simms for the annual cleaning of instruments at the Royal Observatory, 1898-1909.

Correspondence with Elliott Bros. concerning the repair of 'The Wheatstone bridge and Galvanometer', 1914.

Correspondence with Sir Howard Grubb, Dollond and Co., Newton and Co., and Adam Hilger Ltd concerning the purchase of a small flat mirror for determining the flexure of instruments, 1914-1915.


  • Creation: 1898 - 1915


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 bundle(s) (1 bundle)

Language of Materials


Former / Other Reference


Finding aid date

2006-03-30 10:41:46+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