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Observations and calculations of longitude, 1857 - 1862

Reference Code: GBR/0180/RGO 6/115

Scope and Contents

Observations, reports and calculations for the longitude of places in North America by W.B. Jack; the longitude of Chicago; differences in longitude observed by Pulkova and Dorpat; longitudes of places in Australia; and the longitudes of Shanghai, Paris, Vienna, Ghent, Brussels, New Westminster, Canada, Williamstown, Victoria and Newton Abbot, Devon. The volume also includes various works, maps, reports, observations and correspondence on solar eclipses. There is substantial material on the solar eclipse of 6-7 September 1858, with an article by R.C. Carrington on how to observe the eclipse. There are also observations, reports, maps and other material concerning the eclipse of 31 December 1861, which was observed at Algiers and Trinidad, with 26 photographs relating to Trinidad, including 22 photographs of the eclipse itself. The box also contains enquiries about solar flares; newspaper articles and other papers on minor eclipses in 1793, 1857, 1858, 1860 and 1861; and Hansen's Tables and predictions for eclipses in 1870, 1887 and 1914.


  • Creation: 1857 - 1862


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 archive box(es) (1 box)

Language of Materials


Former / Other Reference


Finding aid date

2006-01-03 10:59:33+00:00

Includes index.

Repository Details

Part of the Cambridge University Library Repository

Cambridge University Library
West Road
Cambridge CB3 9DR United Kingdom