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11 



PHILOSOPHICAL 



TRANSACTIONS 



OF THE 



ROYAL SOCIETY 



OF 



LONDON. 



FOR THE YEAR MDCCCXXIX. 

 PART I. 



^/-- 



LONDON: 



PRINTED BY RICHARD TAYLOR, RED LION COURT, FLEET STREET; 

 AND SOLD BY G. AND W. NICOL, PALL MALL, BOOKSELLERS TO THE ROYAL SOCIETY. 



MDCCCXXIX. 



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