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# Page: https://leibnizlegible.com/page/00068531:0181
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# Title: Leibniz-Handschriften zur Optik und Dioptrik LH 37, 2
# Folio 91r, page id 00068531:0181
# Scan: One image of two folio pages side by side, registered by the library under both labels (also fol. 84v); this page is its right half.
# Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=00068531&page=181
# Source image: https://digitale-sammlungen.gwlb.de/content/00068531/jpgs/default/00000181.jpg
# Model: FoNDUE-GD_v2_ft_Leibniz, run 74, 2026-09-06T16:05:13Z — 21 lines, status machine
# Lines: 21 recognised, mean confidence 0.95
# 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.

necessarium duxi adjungere hic quo modo vruo solum modo vitro
vide sequentia: ac duorum pluriutve compositione esc: retro signo . certendo ter
congregan mnnoremque focum efficere debere. Si itaque BF
adeo parva sumatur ut illa pro punco mechanuo habenda
sit, ponaturq; vitrum eamr habere figuram, quam F. DB
circa axem DF rotatar describit, manifestum est hujus
modi vitrum in tantum consideraris osse, ac si figurant
hyporbolicam plano seaam haberet, et ope ejus componi
ao
posse omnis genens specilla eo modo quo id a Lo.
des Cartes ope hyporbolicorum vitrorum factum ert. inique
notandum etiam est nullas figuras polita esse faciliores
quam ha ipse sunt, cum constent circulari figura et plana,
qua nullam ad muicem habent relationem, nec ut nam
nec ut planum sit ad angulos rectos ad axem DX, nec
ad vitri crassitiem attendere, neceste et.
facile praterea ex his explicare possen figuras
ac compositionis modum vitrorum, tamtelescopiorum, quam
etiam microscopiorum qua bactenus obsiruaui Ofectum
aliquem notabilem habuisse; ac etiam quo modo k Utrag
parte couvena haec vitra aut inter scse, aut cum aliis