PHILOSOPHICAL 
TRANSACTIONS, 
GIVING SOME 
ACCOUNT 
O F T H E 
Prefent Undertakings, Studies, and Labours, 
O F T H E 
INGENIOUS. 
IN MANY 
Confiderable Parts of the WORLD. 
L O N T> O N: 
Printed for C. Davis, over-againft Gray s- Inn-Gate 
in Holbourn 5 Printer to the Royal Society. 
M. DCC. XL ix. 
