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DISSERTATION SECOND 



EXHIBITING A GENERAL VIEW OF THE 



progrejBtf of ^atfiemattcai anD Pfigtfical 



science, 



SINCE THE REVIVAL OF LETTERS IN EUROPE. 



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BY JOHN PLAYFAIR, 



Professor of Natural Philosophy in the University of Edinburgh, Fellow of the Royal Society 

 of London, and Secretary of the Royal Society of Edinburgh. 



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