PHILOSOPHICAL 
TRANSACTIONS, 
GIVING SOME 
ACCOUNT 
OF THE 
Prefent Undertakings, Studies, and Labours, 
OF THE 
INGENIOUS, 
IN MANY 
Confiderable Parts of the WORLD. 
VOL. LIV. For the Year 1764. 
LONDON: 
Printed for L. Davis and C. Rev m ers, 
Printers to the Royal Society, 
againft Gray s-Inn Gate , in Holbourn . 
M.DCC.LXV. 
