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PHILOSOPHICAL 
TRANSACTIONS 
y~ , 
Giving Some 
ACCOUNT 
* * 
OF THE 
PrefentUndertakings,Studies and Labours 
OF THE 
INGENIOUS,- 
In Many * 
Confiderable Parts of the W ORLD. 
V O L. XXXI. For the Years, 1710, 1721. 
•'*p • 
LONDON: 
Printed for W. and J. Innys, at the Princes-Arms ,# 
at the Weft Corner of St. Paul’s Church-Yard. 
Mdccxxiii. 
