PHILOSOPHICAL 
TRANSACTIONS, 
OF THE 
ROYAL SOCIETY 
OF 
LONDON. 
FOR THE YEAR MDCCCVII. 
PART 1. 
LONDON, 
PRINTED BY W. BULMER AND CO. CLEVELAND-ROW, ST. JAMEs’s ? 
AND SOLD BY G. AND W. NICOL, PALL-MALL, BOOKSELLERS TO IT IS MAJESTY, 
AND PRINTERS TO THE ROYAL SOCIETY. 
MDCCCVII. 
