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 75
the northing from it, and the remainder,65.3, shows how far the ship is to the southward of herfirst place The difference of latitude = 65.3 and the depart-ure = 14.2 give (Table i or 2) Course S. by W., anddistance = 67 miles. Or, by computation— D. L. = d^.T. log 1.81491log 1.15229 Courses. Dist.… … 65-3 14.2 = 12^ 16 log tan 9.3373866.8 logloglog 1.15229 sin 9.32728 .82501 Suppose the ship had left latitude 41° 10 N., byapplying the difference of latitude = — 65.3 will givelatitude arrived at 40 05 N. Example 2. A ship from Mount-Desert Rock, inthe latitude of 43^^ 50 N., sails for Cape Cod,…
Navigation · Nautical astronomy
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