PHILOSOPHICAL 
TRANSACTIONS, 
OF THE 
koyal society 
O F 
LONDON. 
V-Q L. LXXVIII. For the Year 1788. 
PART I. 
• R t**w* % /r . 
LONDON, 
r 
SOLD BY LOCKYER DAVIS, AND PETER ELM SLY, 
PRINTERS TO THE ROYAL SOCIETY* 
MDCCLXXXVIII. 
