PHILOSOPHICAL 
TRANSACTIONS, 
GIVING SOME 
ACCOUNT 
OF THE 
Prefent Undertakings, Studies, and Labours, 
OF THE 
INGENIOUS, 
IN MANY 
Confiderable Parts of the WORLD. 
VOL. LXIV. Part I. 
LONDON: 
Printed for LOCKYER DAVIS, in Holbourn, 
Printer to the Royal Society. 
M.DCC.LXXIV. 
