PHILOSOPHICAL 
TRANSACTIONS, 
GIVING SOME 
ACCOUNT 
OF THE 
Prefent Undertakings, Studies, and Labours, 
o F T H E 
INGENIOUS, 
IN MANY 
Conliderable Parts of the WORLD. 
VOL. LXIII. Part I. 
LONDON: 
Printed for LOCKYER DAVIS, in Holbourn, 
Printer to the Royal Society. 
M.DCC.LXXIII. 
