( 10 zo ) 
Mpfs being in the place of the Eye*Glafs, will receive 
the Rays diverging from the feyeral points of the Image 
f projected by the Obje<^-Glais in yx^ Fof^s,) in fucb 
manner, that they will after their fevcral refra( 9 ions 
meet in refpedive Points on the Retina^ and the Axes 
of the Pencils which come from the extremities of the. 
ObjetS, will, in the Eye, make the Angle B V A =: to 
h ca, under which the Image ah feen, by Lemma 4. 
The Cornea and (pilous Humour here fupply the 
place of the Eye-Glals, and the Cryflallwe and Fitreous 
Humours that of a common Eye, See the 5th Fig, 
wherein R is the Retina^ V th? Fitreoua Humour, and 
KK the Crjfialline Humour; and the Image ha isfup-- 
pos’d to be brought down from the Jfrfi Fig. which re- 
prefents the Ajlronamick Tele/egpe: the too great Con- 
vexity of the Eye here being in the place of an Eye— 
Glafs. 
An Objeeflion may be made to^ this, viz. that P P ‘ 
the Pupil of the Eye being fmall, will take in but a ve- 
ry little Image, or a fmall part of the Objed : - But 
then if the Eye be mov’d fuccelTively, to all the parts 
of the Space where the Eye-Glafs was, it can take 
any part of theObjed; and if the Ob jed- Glafs be 
large, which may more eafily be made than a large 
Ey€*GlaIs, and the Tube a Foot wide or wider, as 
much may fucceflively be taken in, as if an Eye-Glafs 
might be had of a Foot Diameter. A little ptadice 
may make any /kljops fo ready, to k^ep an Objed: 
when once found, though: the placo - where- he fland^ 
be (haken. . It would not be amils. to hold a in 
one’s Hand (for an Eye-Glafs) to find the Objed at . 
firft, tillcuftomhas madeitcafy without it : \^hen once 
the Object is foundi it ma^'he. eafily kf^c^ , • ; 
An- Eye mote thort-figbied than );;}ha\e.ifuppos’d, ■ 
will perform 'thei Office., oE a Ey^> Glafs, 
being 
