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<p>Book digitized by Google from the library of the University of Michigan and uploaded to the Internet Archive by user tpb.
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<br>Subjects: globe; latitude; meridian; altitude; degrees; thofe; horizon; quadrant; fame; sun; fhall find; angled spherical; thofe places; thofe degrees; spherical triangle; public domain; planetary hour; ihall find; great circles; fliall find</div>
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William Leybourn ,  Robert Morden</div>
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