PHILOSOPHICAL 
TRANSACTIONS, 
GIVING SOME 
ACCOUNT 
OF THE 
Prefent Undertakings, Studies, and Labours, 
OF THE 
INGENIOUS, 
IN MANY 
Confiderable Parts of the WORLD. 
VOL. LXL For the Vear 1771 . 
PART L 
LONDON: 
Printed fbr L O C K Y E R D A V I S, iil Holhourn, 
Printer to the R 0 V a l Society* 
M.DCC.LXXIh 
