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The New American Practical Navigator ... Exemplified in a Journal Kept from ...
No preview available - 2018
added altitude anchor angle apparent applied arch base bearing calculated called central centre circle co-sine column compass correction corresponding course declination departure Diff difference of latitude difference of longitude direction Dist distance divided draw east equal error EXAMPLE extent feet figure given gives glass greater Greenwich half hand head height horizon length less limb logarithm longitude lower manner marked mean measured meridian method middle latitude miles minutes moon moon's multiplied Nautical Almanac nearly noon object observation obtained opposite parallax parallel passing perpendicular plane points preceding radius refraction right ascension round rule sail ship ship's side sine square stand star subtracted sun's Suppose Table taken tangent telescope true turn variation watch wind