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 78
ofwhich half fum and half difference gives the angle C 500 5and their differencethe angle B 330 $$; the greateft angle beingoppofite to the greateft fide*. 2dly. The extent from the angle B 330 55, to the angle A 960 (or itsfupplement 840) on the line of fines, will reach from the fide AC 80 to… … Draw the indefinite right line FH, on which fet off AC=io8 ; take 8 Jin your companies, and with one foot on the point A, fweep an arch; thentake the diftance 57 in your compafles, and with one foot on C, fwecDanother arch interfering the former arch in the point B ; join AB, CB andit is done. For…
Navigation · Nautical astronomy
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