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 119
9S TRIGONOMETRY. Or Log. s, 4 ■£, a -.kog. { c+H-Log. | ~-Log. E-Log.r.. Or L. ,U Ar-1 E + L F + L * s+°+L io -, 9 f 86 (85 … Where L. ftands for logarithm, and 1. for Arith. comp. of the logarithm. 346. Every poflible cafe in plane Trigonometry may be readily folvedby the preceding Problems, obferving the following Precepts. I. Make a rough draught of the triangle, and putthe letters, A, b, c, at the angles. II. Let fuch…
Navigation · Nautical astronomy · Fortification
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