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
- 1818 - 1828
Conditions Governing Access
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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
Creator
- From the Management Group: Royal Greenwich Observatory (Organization)
Repository Details
Part of the Cambridge University Library Repository
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