# Leibniz Legible — https://leibnizlegible.com
# Page: https://leibnizlegible.com/page/175905688X:0072
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# Title: [Ps. 1] (shelfmarks Leibn. Marg. 178, Stück 1; Leibn. Marg. 178)
# Folio 50, page id 175905688X:0072
# Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=175905688X&page=72
# Source image: https://digitale-sammlungen.gwlb.de/content/175905688X/jpgs/default/00000072.jpg
# Model: FoNDUE-GD_v2_ft_Leibniz, run 74, 2026-09-06T16:05:13Z — 52 lines, status machine
# Lines: 52 recognised, mean confidence 0.79
# 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.

0
le
CF F O H E X R Y B
(uCP A e CL) libi invicem sint aequales: Velimulquo
rectam lincam ducere CF, qua lecet hanc Conchoi-
dem in daro puncto C ad angulos rectos: Duarendo
juxca mechodum, a nobis expolicam, in linca AB pun-
etum, per quod dicta linea C F transire debet, incide-
mus in calculum, nullo peaecedentium breviorem; dt
nihilominus constructio inde elicienda ralde breris est.
Oportet enim duncaxat in linca recta C C7 Sumere CD
aequalem C B, quae perpendiculariter cadic in B A, 8
deinde ex puncto D ducere DF, parallelam CrA, ac
sequalem L. Cr: qua ratione habebitur punctum F, per
quod quaelita linea C P est ducenda.
Caecerum ut sciacis, considerationem curvarum li-
nearum, hric propolitarum, non carereulu, et quod il-
varum o. Lx direrlas habeane proprietates, quae nulla ratione ce-
dunc proprictatibus sectionum Conicarum, libet pea-
terca huc subjicere explicationem certarum quarundam
Oralium, quas ad Catoperica e Dioptrica Theoriam
utilissimas esse ridebitis. Modus autem quo illas de-
Ccribo, talis cAt.
Primum ductis rectis lineis F A ex  MI
lelale
plicaiio
quodor ee
nerum no-
valium
Optica in
servien
imm.
M
C
b
i
ju
10
ell
det
Dec
516
line
IEm
le
q
De
C
MIII
que
ex 
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