r An Account efTtvo Btoks. 
I. SAGGl di XA1URALI ESPERIENZE fatti tiitP A~ 
CADEMIA dtl CIMENTO , in FIRENZE, A. \66j t 
t% h Fol. 
THis Book was lately by two Excellent perfonsof the Flo- 
' rentine Virtuofi^fe. Lorenzo Magalotti, and Paulo Falco- 
nim prefented to the R. Society in the name of His Highnefs 
Prince Leopold of TuJ catty ,that Great Patron to real Philofophy. 
The Book contains thefe particulars^ 
i. An explication of the Inftruments, employed in thefe 
experiments. 
z. Exp. belonging to the Natural Preffure of the Air. 
3. Exp. concerning Artificial conglaciations. 
4. Exp. about Natural Ice. 
5. Exp.about pe change of the capacity of Mettal and Glafs, 
6. Exp. touching the compreflion of water. 
7. Exp. to prove that there iSrao pofitive Lightnefs. 
' 8. Exp. about the Magnet. 
6. Exp. about ^mber and other Subftances of a vertue E- 
le&rical. 
10. Exp. about fome changes of Colours in divers Fluids, 
ii* Exp. touching the motions of found. 
12. Exp. cencerning Proje&ils. 
13. Varioas experiments. 
As all thefe Heads are very confiderable 5 and of main im : 
port ance to Philofophy, fo doubtlefs will the handling of them 
be by competent Judge* found worthy of thefe fimcus Aca- 
demians del Cimento. 
11. VERA CIRCULI ET HYPERBOLA gUADRATU- 
RAy in propria fua proportionis fpecie inventa demonftrata, 
a fAC.GREGORIO SCOTO, Patavii, in 4 0 
THis Trad perufed by fome very able and jadicious Ma- 
thematicians, and particularly by the Lord Vifcounn 
Browker y and the Reverend Dr. $ohn Wallit^ receiveth the 
Chara&er of being very ingenioufly and very Mathematical- 
ly written, and well worthy tfee ftudy of men addi&ed to 
that 
