The elements of navigation : containing the theory and practice, with all the necessary tables, to which is added, a treatise of marine fortification ... (1754)
Robertson, J. (John), 1712-1776, Adams, Charles Francis, 1807-1886, former owner. BRL, Adams, John, 1735-1826, former owner. BRL, Boston Public Library) John Adams Library BRL · London : Printed for J. Nourse ... · leaf 281
ift.aom. 2d. SW. dift. 40m. 3d. NE.b. E.dift.6<w4th. SE. dift. 55 m. 5th.W.b.S. dift. 41m. 6th.E.NE. dift. 6(ti Required her prefent latitude, with the direcl courfe and dijiance behthe place failed from and the place come to f ConftrucT: the traverfe table by art. 695, and the figure by art. 6(… … The traverfe table being filledup, the fum of the northings andfouthings are both 75,2 miles;which being of contrary dire&ions,fhew that the fhip has returned tothe fame parallel of latitude failedfrom. The fum of the eaftings is 149,8,and that of the weftings is 79,6;their difference 70,2…
Navigation · Nautical astronomy · Fortification
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