Sight Reduction Tables for Marine Navigation - Pub. 229 (HO-229) Vol. 4 Latitudes 45-60 Format:e-Book These are colored orange

These are colored orange

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British Admiralty Nautical Chart  4020: South Atlantic Ocean Western Part is a standard nautical chart

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Sight Reduction Tables for Marine Navigation - Pub. 229 (HO-229) Vol. 4 Latitudes 45-60 Format:e-Book These are colored orangeSIGHT REDUCTION TABLES FOR MARINE NAVIGATION Pub. No. 229 (HO 229) Volume IV Latitudes 45 60 Commercial Edition This is the standard set of tables designed for marine navigation. Although there are 6 volumes in a set, only those pertaining to the latitudes anticipated need be obtained. Their tabular data, being purely mathematical results, never go out of date. The latitudes listed for the Volumes work for either northern or southern hemisphere. IMPA