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