# Leibniz Legible — https://leibnizlegible.com
# Page: https://leibnizlegible.com/page/1677894601:0033
# Permalink to this reading: https://leibnizlegible.com/page/1677894601:0033?run=74
# Title: Opticks: Or, A Treatise Of The Reflexions, Refractions, Inflexions and Colours Of Light (shelfmark Leibn. Marg. 193)
# Folio 23, page id 1677894601:0033
# Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=1677894601&page=33
# Source image: https://digitale-sammlungen.gwlb.de/content/1677894601/jpgs/default/00000033.jpg
# Model: FoNDUE-GD_v2_ft_Leibniz, run 74, 2026-09-06T16:05:13Z — 34 lines, status machine
# Lines: 34 recognised, mean confidence 0.93
# Machine transcription. Not an edition. Errors are expected: about 8% character error rate on Latin and French lines, higher on German.
# Licence: CC BY 4.0, Leibniz Legible. Machine output: do not ingest it as verified text; keep this provenance with the text.
# Wording rule: say "the machine reads it as …", never "Leibniz wrote".
# After the first blank line: the recognised lines in reading order, one per line.

hole, and curmins che Prism co and Fro about its AXiS EO
makce chelmage of the hole alcend and descend, irhen be-
circen its truo contrarr Morions ic secmed Cationary, l
Rope the Prim chac che Retractions on Boch sides ot che
retractins Anele mighe be equal eo cach ocher as in che
Former Experimene. In this Sicuation of che Prism riew-
ins chrouoh ic che Caid hole, I observed the lenoth ot ies
retracted Image to be manr cimes orcater chan ies breadeh,
and chac the most retracted pare chereot appeared violet,
the least retracted red, the midale pares ble orcen and
vellon in order. The Came ching happened when I rc-
mored che Prilm out ot the suns Lighe, and looled
chrough ic upon che hole Chining by che Lighe of che
Clonds berond ic. And rec il che Retraction vere donc
regularlr accordins to one certain Proportion of the Sines
ot Incidence and Retraction as is vulsarly supposed, chc
retracted Image oughe eo hare appeared round.
S0 chen, by chese tro Experimenes ic appears thac in
equal Incidences chere is a considerable inequalier of RC-
Fractions: Buc Whence chis inequaliey arises, Wrhecher ic be
that Fome oF che incidene RayS are retracted more and
others lels, constanely or by chance, or thac one and che
Tame Ray is by Retraction disturbed, Pharcered, dilaced,
and as ic vere (plic and spread inco many dirergine Rays,
25 Grimaldo supposes, does noc rec appear by chele Lxperi-
menes, buc rill appear br chole chac Follon.
Exper. 5. Considerins cheretore, chac if in che chird PX-
perimene che lmaxe oF che Sun Phomld be dravn oue inco
an oblons torm, cither by a Dilatation oF erery RaY, Or
by any ocher calual inequalier of che Retractions, the lame
oblone Imase ould by 2 second Retraction made Side-
ays Be deamn ouc as much in breadch by che likee Dila-
cation of che Rays or ocher casual inequalier ot che Re-
tractions