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 43
ke AD equalto BC ; then it is plain that AC is the fum and DB the difference of thetwo quantities, and AE or EC the half fum, and DE or EB their half dif-ference :_ now if to AE we add EB, it is evident that the fum will be AB jthat is, if to half the fum we add half the difference, the fum will be…
Navigation · Nautical astronomy
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