The new American practical navigator : being an epitome of navigation, containing all the tables necessary ... (1802)
Bowditch, Nathaniel, 1773-1838, Lee, Marvin, former owner. DSI, Stuart, Gilbert, 1755-1828 DSI, Burndy Library, donor. DSI · [Salem] : Printed at Newburyport, Mass., 1802, by Edmund M. Blunt, for Cushing and Appleton, Salem : Sold by every book-seller, ship- chandler, and mathematical-instrument-maker in the United States and West Indies · leaf 219
thefecond ftation;draw the N. E, line AC,and the E. N. E. lineAD; through the pointBdraw the lines BC,BD,^lparallel to the N. by EJand N. E. by N. lines,and the points C and D•where they interfeel thelines drawn from A tothe fame headlands, willbe the points reprefenting them refpettively ; join… … In the triangle ABC, we have allthe angles and the fide AB to findBC. For the bearings of B and C fromA are E. by S. andN. E. the difference being 5 points=BAC ; and thebearings of B and A from C, are Sby W. and S. W. the difference be-ing 3 points equal to the angle ACB To find the fide BC„As fine…
Navigation · Nautical astronomy
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