PHILOSOPHICAL 
TRANSACTIONS, 
GIVING SOME 
ACCOUNT 
OF THE 
Prefent Undertakings, Studies, and Labours, 
O F T H E 
INGENIOUS, 
IN MANY 
Confiderable Parts of the WORLD. 
' LONDON: 
Printed for C. Davis, Printer to the Royal 
Socie tyj over-againft Gray s- Inn-Gate in Holbourn * 
M. DCC. XL i x. 
