PHILOSOPHICA L 
TRANSACTIONS, 
GIVING SOME 
ACCOUNT 
OF THE 
Prefent Undertakings, Studies, and Labours, 
O F T H E 
INGENIOUS, 
IN MANY 
CONSIDERABLE PARTS OF THE WORLD. 
VOL. LXV. For the Year 1775. 
PART II. 
LONDON, 
PRINTED BY W. BOWYER AND J. NICHOLS: 
FOR LOCKYER DAVIS, IN HOLBOURN, 
PRINTER TO THE ROYAL SOCIETY* 
MDCCLXXV, 
