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 291
iftance do — 292,3 m. Quest. XX. Departing from St. Marys, one of the Azores, and ito the river Sierra leone, after running SE. 36 hours at 7 knots anray fea compafs was fpoiled by a flajh^ of lightning; then after 8 dtfjtfiBrun between the S. andJV. I met a Jhip injat. 10* oo N. long. 36? idand… … was In the triangle ABC. The diff. lat. = depart, or abc == 178,2 m. In the triangle cfd. The courfe was S. 49* 07or SW. I W. nearly. The diftance cd = 1286 m In the triangle dgi. The courfe to Mayo at I,S. 71°. 51 E. orESE. 4 E. ne; The diftance di = 9.01,8 m. In the triangle ilm. The courfe to…
Navigation · Nautical astronomy · Fortification
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