[3^7 3 
Variety of Objeds to compare her to, then the Pure Air; 
yetlhe will feen> bigg, as if lookt at over the Rugged top 
of an uneven toVi^ I^ockey Country. Moreover, all 
Variety ofadjoyning objefts may be taken off, by looking 
through an empty Tube, and yet the deluded imagination 
is not at all helped thereby. I come next to the Iblution 
hereof given by the Famous Thomas Hohhs : and for this 
we Hiall ftand in need of the firft Fig. wherein fays he, let 
the Point G be the Center of the Earth, and F the Eye on 
the furface of the Earth; on the fame Center G, let there 
be ftruck the two Arches, £ H determining the Atmof> 
phere, and v^i^ toRepi^efefitthat blew^ furface in which 
we Imagine the fixed Stars: and let FD be the Horizon, 
Divide the Arch-^ D into three equal parts by the lines 
BF.CF) it is manifeft that the Angle AFB is greater 
then the Angle B FC,and this again greater than the Aa- 
glc C FD* Wherefore fays he, to make the Angle C FD 
qual to the Angle C FB, the Arch C D muft be greater 
then the Arch C By and confequently, that the Moon 
may in the Horizof7> appear under the fame Angle as when 
Elevated, flie muft cover a greater Arch, and therefore 
feem greater; that is the Moon in the Meridian appearing 
under the Angle B FCy that fhee may appear under an e- 
qual Angle in the Horizon^ as fuppoft C F £), tis necelTary 
that Arch C D fhould be greater then C B; and conft- 
quently tho fhee appear to fubtend a greater Arch when 
in the Horizon then when Elevated, yet fhee appears un- 
der the iame Angle. And all this without Refraftion. 
The Geometry of this Figure is raoft certainly true and 
Demonftrable. At this I quarrel not;but it makes no more 
in our prefent Difficulty then if nothing had been faid: 
for the Philofbpher has here made a Figure of his own, 
and from thence he Argues as confidently, as if Nature 
would accommodate herlelf to his Scheme, and he not Ob- 
liged to Accommodate his Scheme to Nature ; for here he 
has mide the Circle G F reprefenting the Earth very large 
R r 2 in 
