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fssher thrust the othcr, than that the other thrust tbis, out öf place. Where-ar, ni the Akitüde, ir is othcrwife: For while What is neaf the Horifcon isinlarged, that whieh is fufther off is thereby contracted ; whieh as to theAzirrtuth or Horizontal Position cansiot be.

Supposing then that the Sim’s Apparent Hofizofttäl Diameter, takcn byInstrument, «the seme near the Horizon, as m a higher Position, I takte ksimaginary greameßj whieh is fansied near the Horizon, tö he onfy a DeCep-rion of the Eye , or rather the Imagination from the Eye.

For stire ir is, that the Imagination doth not Estkhate the greatneß of theObject seen, only by the Angle Whieh it makes ät the Eye ; but, by this«ompared with the sopposed Distanee. True k h, that Caterli fAribus, Wcjudge that to he the greater Object; whieh Makes at the Eye the greater An-gle. bot not so if apprChendcd at different Diffances.

For it through a Casemcnt (or 1 esset Aperture) we see a Hotrse at t ooyards distanee ; tbis House (though secn under a leß Angle) doth not so usseem fefs than the CasemCnt through whieh We see it, (or .this greater thanthat, because it fnakes at the Eye the greater Angle:) Hut the Imaginationmakes a Comparative Estimate from the Angle and Distanee joiftrly con-siderM.

So that of two thirigS seen undef the seme or equal Anglcs, if to one ofthem therfe be ought Whieh gives the Apprehertsion of a greater Distanee,that V» the Imagination will appear greater, Now, füre it is, that one greatAdvähtage fbr Estimating the Distanee of a thing secn, is from the Vatiety ofisterroediate Objects betWeen the Eye and the thing seeiv. PoV then the Ima-gination muss alloW room for all these things.

Now when fht Sun o t Moon is near the Horizofi, there is- ä Prospect ofHills* and Vallies, and Plaihs, and Woods, and Rivers, and väriety or FieldsAnd Irtclosures, between. it and us; wliich preseht to our Imagination a greatDistanee capable pf reeefving all these. Or, if .it lo cliance, that (in semePosition) these InWrjäedtates are not actually seen : yet having been ac-custom-ed to see them,. the Memory suggests to us a vfcW as large as is theVisible Horizoft.

But when the Sun of Moan is in a highes Position ; we see flöt hing be-tween us and them (unless perhaps some Clouds), and therefore nothing topresent to our Imagination so great a Distanee as the other is.

And therefore, though both be seen under the farne Angle, they do notappear (to the Imagination) of the seine bigneß, _ because not both fansied attne fame Distantes •. But that near the Horizon is jiidged bigger (beeäuse fup-posod farther off) than- the seine when at a greater Alritude.

’Tis true, That as to. finall and midling Diffances (besides this Estimatefrom Intermediäres) the. Eye bath a means within .it seif to ina^e ferne Esti-mate of the Distanee.. As, when we already know the bigneß of a thingseen, tö Whieh we have been aecustorrted y as a Man, ä Tree, a House, orthe like : If such thing-appear to üs under a sinall Äflgfe, and Indistinct,fnd fäintly coloured, the Imagination doth alloW such Distanee äs to maltesoefra thing fc to.appear. And, if this, thrdögh a Prdfpective Glaß, be-

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