Context

Context of Panorganon, or, A universal instrument performing all such conclusions geometrical and astronomical as are usually wrought by the globes, spheres, sectors, quadrants, planispheres, or other the like instruments yet in being, with ease and exactness : some uses whereof are exemplified in the solution of such problems as are of frequent use in the practise of geometry, geography, astronomy, trigonometry, dialling, projection, &c.
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