PHILOSOPHICAL 
Tranfadions : 
GIVING SOME 
ACCOMPT 
OF THE 
Prefent Undertakings^ Studies and Labours 
OF THE 
INGENIOUS 
IN MANY 
Confiderable Parts 
^ OF THE 
WORLD. 
VOL. VII. 
For the Tear M DC LXXIL 
LONDON, 
Printed by T. R. (or'jch^f Martyn at the Bell in Sr. 
churchyard, Pricter toth^ ROrAL SOCIETT. 
