The American practical navigator : being an epitome of navigation and nautical astronomy (1888)
Bowditch, Nathaniel, 1773-1838, United States. Navy Dept. Bureau of Navigation, Cooper, Philip Henry, 1844-1912 · Washington : Govt. Print. Off. · leaf 31
INSTRUMENTS EMPLOYED IN NAVIGATION. 11 the E. the iron moves to the westward and draws the north point of the needle toward it, or to the westward ofthe magnetic North, reaching a maximum when the ships head is due East, diminishing in quantity between Eastand South. As the ships head moves from N.…
Navigation · Nautical astronomy
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