Skip to main content

First notes of mural arc observations, 1694 - 1698

Reference Code: GBR/0180/RGO 1/6

Scope and Contents

'Diarium Observationum Astronomicarum Coelestium' ('Journal of astronomical observations of the heavens'): first notes of observations with the mural arc, 18 January 1694 - 16 March 1698, mainly in the hands of the assistants Samuel Clowes and James Hodgson, though Flamsteed's also appears, 180 folios. There are entries noting visits by Peter the Great (160r, 164v) and other national and personal events (e.g. 24r, 39r, 176r). Inside the back cover is a signed statement by Isaac Newton.


  • Creation: 1694 - 1698


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


Former / Other Reference


Finding aid date

2005-10-19 15:22:27+00:00

Includes index.

Repository Details

Part of the Cambridge University Library Repository

Cambridge University Library
West Road
Cambridge CB3 9DR United Kingdom