Supplement to the practical rules for ascertaining the deviations of the compass which are caused by the ships iron, being instructions for the computation of a table of the deviations of a ship's compass, from observations made on 4, 8, 16 or 32 points and a graphic method of correcting the deviations of a ship's compass
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| Format: | UnknownFormat |
| Sprache: | eng |
| Veröffentlicht: |
London
Hydrographic Office, Admiralty
1855
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| Ausgabe: | (Second ed.) |
| Schlagworte: | |
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