PHILOSOPHICAL 
TRANSACTIONS, 
GIVING SOME 
ACCOUNT 
OF THE 
Prefent Undertakings, Studies, and Labours, 
OF THE 
INGENIOUS, 
IN M A N V 
Confiderable Parts of the WORLD. 
VOL. LIII. For the Year 1763. 
LONDON: 
Printed for L. Davis and C. R e y m e r s, 
Printers to the Royal Society, 
againft Grays-Inn Gate , in Holbourn. 
M.DCC.LXIV. 
