PHlLOSOFHJeAL 
Tranfaftions : 
GIVING SOME 
ACCOMPT 
OFT HE 
Prefent Uudertakings, Studies^ and Labours 
O F T H E 
INGENIOUS 
IN MANY 
CONSIDERABLE PARTS 
O F T H E 
W O R I 
V O L. V. 
For Anno 1670. 
L 0 N D 0 
I Printed for J(^hp^ Marty n at the Bell in St. Vauls Chureh- 
i Yard 5 Printer to the Rojial Society. 
