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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: longitude; values; moon; orbit; lunar; terms; apse; sin; motion; treatise; second order; elementary treatise; angular velocity; periodic time; third order; differential equation; late fellow; public domain; head master; elliptic inequality</div>
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Hugh Godfray</div>
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