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William Cragg on longitude by a ship's reckoning, 1818 - 1828

Reference Code: GBR/0180/RGO 14/39: 52-72a

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].


  • Creation: 1818 - 1828


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From the Management Group:

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22 folio(s) (22 ff.) : Paper

Language of Materials



Cragg, William

Finding aid date

2011-12-07 18:33:30+00:00

Repository Details

Part of the Cambridge University Library Repository

Cambridge University Library
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Cambridge CB3 9DR United Kingdom