PHILOSOPHICAL 
Tranfadions : 
GIVINGSOME 
A C C O M P T 
OF T HE 
Prefcnt Undertakings, Studies and Labour? 
OF THE 
IN G E N I O U S 
IN MANY 
Confiderable Pares 
OF THE 
WORLD. 
V o L.IX. Beginning the Second Century. 
For the Tear M DC LXXIV. 
" L 0 N D'O N, 
Printed by T R. for Jehn Martjn, Printer to the Royal Society ; 
at the B^^ in St. Fauls Church Yard. 
