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 47
h H drawCHD, which will form the angle DCA. of 990yequjred» FROBLEM VII. To make an Acute Angle equal to any. number of degrees, Draw the line BC ; with the chord of 60 ° orradius, in your companies, and one foot on Cdraw the arch FB, on which fet off from B to F,the given angle36|Qtaken from the… … GEOMETRICAL PROBLEM!, 43 PROBLEM VIIL To make an Gbtnfe Angle that /hall contain Itf 2«/, Draw GB; take the chord of 6o° in yourCompaffes, and with one foot on G defcribean arch BGHE* upon which fet off the chordof 66° (which 70a already have in your com-p^affes) from B toGj and from G toH ;…
Navigation · Nautical astronomy
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