Skip to main content

Papers on magnetic instruments, 1873 - 1885

Reference Code: GBR/0180/RGO 7/112

Scope and Contents

Letter from E.J. Stone concerning improvements to Fox's needle for dip and intensity, 1873.

Instructions from Sir George Airy to William Ellis to record the level readings of the dip instruments, 1875.

'Decimated Compass Card' by James M. Share of the Royal Navy, 1876.

'On Magnetic Induction as affecting observations of the intensity of horizontal component of the Earth's Magnetic Force' by C. Chambers F.R.S., Superintendent of the Colaba Observatory, Bombay.

'The Complete Theory of the Bifilar Magnetometer' by H. Wild, 1880.

Note on an improved method of holding dip instrument needles firmly in place, 1880.

List of special instruments inspected by the Astronomer Royal, 1885.

'A method of making automatic records of the movement of delicate instruments' by J. Milne of the Seismological Society of Japan, 1885.


  • Creation: 1873 - 1885


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 10:43:06+00:00

Includes index.

Repository Details

Part of the Cambridge University Library Repository

Cambridge University Library
West Road
Cambridge CB3 9DR United Kingdom