PHILOSOPHICAL 
transactions, 
GIVING SOME 
ACCOUNT 
O F T H E 
Prefent Undertakings, Studies, and Labours, 
OF THE 
INGENIOUS, 
IN MANY 
Conliderable Parts of the W ORLD, 
VOL. L. Part II. For the Year 1758. 
L O N T) O N: 
Printed for L*. Davis and C. R e y m e r s. 
Printers to the Royal S o c i e t y, 
againft Grafs -Inn Gate , in Holbourn. 
M.DCC.LIX. 
