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 513
cribe (163) the vertical circle z ^and hour circle p * s, and the angle zp * being meafured (448), give* *hour from noon. Computation.In the oblique angled fpheric triangle P # z.Given the co-lat. pz 5= 38°28^R .. . . the co-altitude z* = 62 48 £*equiredZ.zP*,ortr.ellU , ,.a Z. *~ T~ \ rom noon,the…
Navigation · Nautical astronomy · Fortification
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