( 2013 ) 
I, That the Stars of the Fir ft MagnHude^ their apparent 
Diameter being fuppofed to be iS^^and theDiameter of the 
Annual Orbe in the Cepermcan Hy pothefis being aflerted^are 
at lead j\6y7j i 30GO bigger than theEarth^and thofe of the 
Sixth Magnitude^ fupPGling their apparent Diameter to be 
^\ 7.^''\ are 4378454048 times bigger^if Riccioh hsLVG cal- 
culated aright in ^fe/.\^.!v7 p.717. 2.Thatinthe doftrineof 
the Earths Reft^th^ Diftaiice of the Fixt Stars is 1 00000 Se- 
midiara.oftheEarth^ and,according tothe CopeniicanS^^ 
fttme3474398ooruch Semidiameters. g^Thatj according to 
€opermcHp^2i ftar of the <S'a7?W magnitude cannot become of 
the Virji^ but it muft grow 2^62569939 bigger than the 
Earth^or approach nearer to the Earth by 1263841 Semidi- 
ameters of the Earth. 4»Tha|: in that part of Heaven^where 
' one Star is grown bigger 5 another, not far ofF,is grown lefs* 
a Eld vice vena 5 fo that^if thofe augmentations and diminu- 
tions could be exadly calculated^ the fums vv^oiild be found 
equal. 
From all vvhichjthe Author deduceth thefe Conjeftures; 
i.That the Heaven of the Fixt Stars is liquid 2. That it is Ge« 
' nerabie and Corruptible. 3»That the motion of the Earth is 
ftill mote improbable. 4. That thefe Variations of the Fixt 
Stars are EffeQs of the Sun^ and that they are but moderate- 
]y diftant from the Sun* s.That thofe Stars are of a matter ea- 
fily diffipable 5 and like unto Lamps, which for want ofali^ 
ment are extinguiflitjand by an acceffion of aliment are mag.^ 
nified . 6. That all the Fixt Stars are in the Concave fuperfi- 
ciesof their Heaven.7« That both the Annual and Diuraal 
Motion of the Earth have no place, according to thefe Ob^ 
fervations* 
V^DimojiratiomFiJicO'Matematica delle feite Propofit/mi^ 
che promejje OonatoKokttu In Firenze 1668* in 
THefe feven PropofitionSj, which this Author pretends to 
have here demonftrated^are thefe 5 
I. what is 'the trm Phypal Caufe of EquilibrrHms } 
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