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# Title: Opticks: Or, A Treatise Of The Reflexions, Refractions, Inflexions and Colours Of Light (shelfmark Leibn. Marg. 193)
# Folio 10, page id 1677894601:0020
# Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=1677894601&page=20
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and Colours. For as che Lighe erhrich comes trom che
Point  gOcs to che Point q, (0 che Lighe which comes
From ocher Poines P and R oF che Object, will 00 10(0
manr ocher correspondene Poines p and r (a5 is manifest
by che sixch Axiom;) (o chat every Poine ot che Obiece
Phall illuminare a correspondent Point ot chePicture, and
chereby makce a Picture like che Object in Strape and Co-
lour, chis onty excepted char the Picture Phall be inverred.
And ehis is ehe reason of thac Vulgar Experiment oF cast-
ino che species ot Objeces From abroad upon a WaII Or
Street ot irhice Paper in a dark RoOm.
In like manner When a NTan riers any ObieCE P QR,
ehe Liohe irtrich comes From ehe sereral Poines ot Tne Ob-
ject is (o retracted by che cransparene skins and humours
Ot the Ere, (chac is by che outmard Coat EFC called che
Funica Cornea, and by che cerstalline humour AB irhich is
berond che Pupil mk) as to converse and meer again at
Comans Poines in che bortom of che Fye, and chere eo paine
the Picture oF che Object upon ehac skin (called the Tu-
niea Retina) wich irhich the boccom et the Ere is corered.
For Anatomists irhen cher have taken oH from the Bor-
tom of che Fre chac outmard and most chick Coac called
he Dura Mater, can chen see chrouoh ehe chinner COats
che Dictures oF Objects lively painced chereon. And chese
Pictures propasated by Mocion alons che Fibres of che Op.
rick Nerres into the Brain, are the cause ot VisiOn. FOr
accordinolr as chele Pictures are pertect or impertece, the
Obiect is scen pertectly or impertectlr. IF che Eye be tin-
red wich any colour (as in che Dileale oF the faundise) (0
25to tinge the Pictures in the bocrom of the Fye mith chat
Colour, then all Objects appear tinsed trich che lame Co-
LOur. IF che humours ot chc Pre by old Aoc decar, (0
25 b7 Chrinkins ro malie che Cornea and Coat oF the Cry-
stalline
Fuis. 8.