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 186
e given fide, adjacent to the known angle, on the primitive circle, Defcribe the primitive circle, and draw the di-meter BD. Make bc equal to the fide adjacent to the givenngle = 56° 40. 3....-., (446) Defcribe the great circle cae, making the angle —Aca equal to the given one, =r: 1250 20.… … 448. Computations.To find the angle a, oppofite to the other given fide. (527)is fin. onelide ab =: 114°30/ 0,04098) ofin. op. Z. c = 56 40 9,92194 J Which may be either acute or ob-;ofin. oth.fide cb= IZ5 20 9,91158 )>tufe from the things jiven : But the J conftruftion (hews it to be acute. o…
Navigation · Nautical astronomy · Fortification
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![An illustration from Nicolai Copernici Torinensis De reuolutionibus orbium coelestium, libri VI : Habes in hoc opere iam recens nato, & aedito, studiose lector, motus stellarum, tam fixarum, quàm erraticarum, cum ex ueteribus, tum etiam ex recentibus obseruationibus restitutos: & nouis insuper ac admirabilibus hypothesibus ornatos. Habes etiam tabulas expeditissimas, ex quibus eosdem ad quoduis tempus quàm facillime caculare poteris. Igitur eme, lege, fruere. [Line in Greek] (1543)](https://img.insideoutlibrary.com/img/200/ia-nicolaicopernici00cope-65-41.webp)
