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 221
omicalpositions. Dip, variation, &c., arealso determined. The extremities of the base formtwo of these stations. The astronom-ical l)earing of the base line, as also ofsome of the sides of the triangles, aredetermined. At suitable points in the triangu-lation check base lines are measured,which… … I , 1 1 , 1 ,1 • ... ^^ ticuienis oi me various tri angles are calculated, the trigonometric positions thus obtained corrected for the curvature of the earth, and reconciled with the positions as determined by the astronomical observations. The positions (or triangulation points)are then plotted…
Navigation · Nautical astronomy
Internet Archive · California Digital Library · Public Domain Mark 1.0. Free to use for anything.
