William Cragg on longitude by a ship's reckoning, 1818 - 1828
Scope and Contents
Eight letters from Cragg concerning his proposal for finding longitude by a ship's reckoning using a compass and charts, without the assistance of celestial lights or books of calculation. Includes charts for sailing [RGO 14/39: 53] and [RGO 14/39: 68v].
Dates
- Creation: 1818 - 1828
Creator
- From the Management Group: Royal Greenwich Observatory (Organization)
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
22 folio(s) (22 ff.) : Paper
Language of Materials
English
Originator(s)
Cragg, William
Finding aid date
2011-12-07 18:33:30+00:00
Repository Details
Part of the Cambridge University Library Repository
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