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# Title: [Lectiones XVIII, Cantabrigiae in Scholis publicis habitae] Lectiones XVIII, Cantabrigiæ in Scholis publicis habitæ (shelfmarks Leibn. Marg. 0; ZEN Leibn. Marg. 0)
# Folio 104, page id 797435492:0164
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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 0.90
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E18. 163.
l.. F. C. T.
2. Reliquis datis. lentem describere.
310
Frmaneur ad arbitrium B E distantia lentis ab imagine, BD CraB.
ties lenris, ex alter circulorum lentem constituentium ur. (in hoc ex-
eriplo) anrerior F BF, cujus centrum (IEC; _ ad ilta puncta B, D, C
CrIGANEUE BP, DQ. CI ad axin perpendiculares. deinde per pun-
etum A ducatur recta quaevis A P IscCanSBP, _ CI in P, _ I. Fiat
CI. C H:: I. R; _ aSaTuT R P secanSD Q in 9. FaFD O. DS::
T. R; _ agatur SY sCCanS RP productam in s; a quo demitratur
perpendicularis sK; _ centro R interrallo D R describatur circulus
SDF; exit E B F D lens qualITa.
Isic autem innimium excrescenri spatium Lectioni defigatur limes.
D Ene longo circa lueis refectiones, quarenus hae visum afticiune,
Dinctituro stadio metam nunc opportune fixuri videmur, ea quomo-
docunque prolecuri, qua reusuainsa nobis vila, nec adeo perrulsata
se objecerant. Quod aurem magnicudines objectas atrinet (quas utique
de punetis cancum radiancibus agenres omnino videamur omisiste)
quales nimirum illae ex hujusmodi radiorum infectionibus quond (-
cum, tiguram, quancicatem mucationes subeunt, id termecorum pastim
atque tulius tractatum prostat, nec animus est mihi cories actum apere,
vel erririo perita quxe que huc transterre. quin de eo spectantia plera-
que cuncta de jam detiniris ac octensis haud difficili nexorio colligi
Posle videntur; singulorum nempe cujulris objecti punctorum (ex-
tremorum praelerrim ac mediorum) apparentias inde dererminando.
verum nec ea penirus neglectui habica, ad sublequentem quoque
regulam (scu monitiunculam) pressius animum adverrenres Forlan
aurumabiris. Si qualem astignara quaeris superticies inAectens (lim-
Dlex auE ComPOlItA) masnicudinis cujutris expolux speciem exhibee
Campliorem nempe vel contractiorem, directam aut inversam, contulam
distinctamre; seu quoris alio modo demuraram) internolcere cupintis,