# Leibniz Legible — https://leibnizlegible.com
# Page: https://leibnizlegible.com/page/1677894601:0040
# Permalink to this reading: https://leibnizlegible.com/page/1677894601:0040?run=74
# Title: Opticks: Or, A Treatise Of The Reflexions, Refractions, Inflexions and Colours Of Light (shelfmark Leibn. Marg. 193)
# Folio 30, page id 1677894601:0040
# Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=1677894601&page=40
# Source image: https://digitale-sammlungen.gwlb.de/content/1677894601/jpgs/default/00000040.jpg
# Model: FoNDUE-GD_v2_ft_Leibniz, run 74, 2026-09-06T16:05:13Z — 35 lines, status machine
# Lines: 35 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.

The Pame ching Pery d also by lecting che suns Lighe
into a darke Room chrough erro licele round holes Fando
made in che indon, and wich erro Parallel Pritns ABC
and aβ3 placed ac those holes (one at cach) retractine
chose erro beams of Lighe eo che oppolire WVaIl of che
Chamber, in such manner thar che cvo colourd Images
P T and mn irhrich cher chere painced vere jorned end co
end and lay in one sraighe Line, the red end Y oF chc
one couching che blew end m ot che other. For it chele
evo retracted beams ivere apa in by a chird Prism D II pla-
ced crost co the ero ArI, retracted Siderrars, and the Spe-
ctrums cherebr cranslaced to lome other pare ot the Wall
ot che Chaber, suppole the Spectrum PI +o pF and
the Spectrum MXIcomn, chese cranslaced Spectrums pt
andmn vould noc lie in one sraiohe Linc wich their ends
conciouous as betore, buc be broken oft from one anocher
and become Parallel, the bleur end ot che lmage mnbeing
by a orcacer Retraction cranslaced Carcher From its Former
place MT, chanche red endt of che ocher Imase pt trom
che tame place MIT itrich purs che Propolition past di-
spute. And chis happens rhether che chird Prism D HIBC
placed immediacely atcer che cwo First or ac 2 oreat distance
trom them, (0 chac che Lighe retracted in che ero Arst
Prisns De cicher irtrice and circular, or coloured and ob-
lono when ic Falls on che chird.
Fxper. 6. In che midele ot ero chin Boards L made
round holes a chird part ot an Inch in Diameter, and in
the Windon. Phuc a much broader hole, beino made to lec
inco my darkned Chamber a larse beam ot che Suns
Lighe; I placed a Prilm behind che Strut in chat DeaM EO
retract ic corards che oppolice Wall, and clole behind che
Prism I Exed one ot che Boards, in luch manner chac che
middle of che retracted Lighe mighe pals chrouoh che hole
made
Fig. 17.