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Papers on the Paris-Greenwich Longitude, 1902

Reference Code: GBR/0180/RGO 7/273

Scope and Contents

'Instrumental Errors...Clock Comparisons by Signals', a collection of papers relating to the determination of the difference in longitude of Paris and Greenwich. The main topics include collimation errors in Transits B and C, the determination of level errors, computation of 'n' for Transit B at Paris and Transit C at Greenwich, readings of individual clock signals and means, and signals and means of exchanges. The papers end with a description of the telegraph system.


  • Creation: 1902


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 volume(s) (1 volume)

Language of Materials


Finding aid date

2006-03-30 10:53:58+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