C i £ y 3 
and 1 then, was the Sun always perpendicularly above 
her Equator, we cannot imagine but that her Equa- 
torial Parts rnuft be burnt up with Heat, and her 
Polar Parts uninhabitable, by reafon of the Greatnefs 
of Cold, occafioned by the Sun-beams being parallel 
to, or making fo very acute Angles with, the Ho* 
rizon. 
But, by fuch a Motion as Bianchini defcribes, and 
which I have exactly reprefented in my Orrery, thefe 
Inconveniences are avoided ; for there is no Place in 
Venus but what will have the four Seafons every 
Year, and the heated Places will have Time to cool $ 
becaufe, to any Place over which the Sun pafles verti- 
cally on any given Day, he will, on the next Day* 
be 26 Degrees from the Vertex thereof, even tho'the 
Place be on the Tropic 5 and if it be on the Equator* 
One Day s Declination will remove him 3 7 t Degrees 
from it. 
I having confidered in general what the Effe&s of 
the Sun's quick and great Declination would be in 
VenuSy as occafioned by the great Inclination of her 
Axis, with her flow diurnal and quick annual Mo- 
tion s and finding that her Globe in the Orrery, by 
being not quite an Inch in Diameter, was infufficient 
for folving her Bhanomena to any Degree of Exa&- 
nefs 5 I took the following Method, by which I 
could do it mechanically, toferve my Purpofe. 
Along the Middle of a ftrait narrow Slip of Parch- 
ment I drew a black Line, and then meafuring my 
Parchment round a common Globe of 9 Inches Dia- 
meter, cutting it fo as when the Ends were a little 
overlapp'd, it would become a Girdle, and flick faft 
on any great Circle of the Globe, Having thus fit- 
R z ted 
