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Correspondence on instruments, 1842 - 1849

 File
Reference Code: GBR/0180/RGO 6/160

Scope and Contents

Correspondence and plans for new telescopes, new inventions and improved techniques. There are numerous plans for a new transit circle at Greenwich and arrangements for the zenith sector; a drawing of W. Lassell's polishing machine; J. Locke's paper on his electro-chronograph; O.M. Mitchel's new method of observing transits; the Earl of Rosse's reflecting telescope; a plan for an equatorial telescope; trials of Barlow's Telescope by W.H. Smyth; clock trials; a double image micrometer; and W.H. Miller's water clock for equatorial telescopes, with drawings. The correspondents include R. Sheepshanks, J.F.W. Herschel, W. Whewell, D.F.J. Arago, H.A.E.A. Fayé and the Earl of Rosse. There is also is a table for division of the old quadrant and sliding rules for the error of collimation.

Dates

  • 1842 - 1849

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 archive box(es) (1 box)

Language of Materials

English

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