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A N 
A C C O M P T 
OF 
TWO BOOKS. 
I. 
FRODR OMO overo Saggio di alcune In- 
ventioni nuove premeflb all ARTE M AE^ 
STRA di P. Frmcifco Lam della Gampagnia di 
J^fu, in Brefday i6jo. in 4^ 
THis Introduftion is premifed to a Work , defigned 
by the Author to Ihew the VaJuablenefs of the Prin- 
ciples and Knowledg of Natural Philofophy, by Ibme of 
the more confiderable Inventions and Experinients hi* 
therto found in Authors^ and other new ones of this Wri^ 
ter himfelf ; who having in his Preface with much free- 
dom reprefented and animadverted upon the Errors com- 
mitted by thofe , that have and do treat of Natural Phi- 
lofophy 
