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# Title: Opticks: Or, A Treatise Of The Reflexions, Refractions, Inflexions and Colours Of Light (shelfmark Leibn. Marg. 193)
# Folio 24, page id 1677894601:0196
# Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=1677894601&page=196
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# Model: FoNDUE-GD_v2_ft_Leibniz, run 74, 2026-09-06T16:05:13Z — 32 lines, status machine
# Lines: 32 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.
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24
niently reckoned trom the lorrest and thiekest part ot
the Bubble uprraids.
OB5. ZIZ.
Viewins in sereral oblique positions ot my five
the Rings ot Colours emergins; on thetopot the Bubble,
lFound that ther ivere sensibly dilated by increasins
che obliquier, but vet not (o much by tar a5 thole
made By thind Air in the seventh Observation. For
there they vere dilated (o much as, wrhen vieved
nost obliquelr, to arrire at a part of the plate more
than trelre times thicker than that irhrere they ap-
peared irtien riemed perpendiculariy; irhereas in this
case the thicknels oF the Water, at irhich chey arrived
irhien riered most obliquelr, Wras to that chicknels
arhich exhibited them by perpendicular raYs, Come-
chins leIs thanas 8 +0 5. By the best oEmy Oblervations
it Wras betreen 15 and 15: to 10, au increale about
24 times less than in the other case.
Sometimes the Bubble rouid become et an unitorm
thicknels all over, except at the top ot it neur the black
Spot, a5 I tner, because it rould exhribit the lame
appearance oF Colours in iIl Politions oEthe FyC. And
then the Colours irtrich ivere seen at iES appareNE CIE-
cumterence by the obliquest rars, vould De different
From thole that wrere seen in other places, by rays lels
oblique to it. And dirers Spectators might sec the
Tame part oF it oF difterins Colours, by vierins it at
very differine obliquities. Nou obserring hou much
the Colours at the lame places of the Bubble, or at di-
vers places ot equal thichnels, vere raried by the
severat