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. 
