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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 80, page id 797435492:0128
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# Model: FoNDUE-GD_v2_ft_Leibniz, run 74, 2026-09-06T16:05:13Z — 36 lines, status machine
# Lines: 36 recognised, mean confidence 0.89
# 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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E C T.
Z 1
L  drallelorum ad circulum refractionem patientium in. contem-
placione defixus, praeter alia praecipua sympromata, locum ulrime
determinavi, quam isti repraesentant, imaginis, oculo in axo constitu-
eo. res jam postulac ut eandem detiniamus oculi gratia secus colloca-
ei. veruntamen unam prius haud inurilem adnectam obserrationem, ad
praecedencia spectantem; hanc urique:
TI. Si duo Scementa NVB R, V 6p lacitudines (vel subten(a5) HVR.
Vexquales habeant; quorum V6s ad majorem pertineat circulum:
hoc cum potentius aduret, tum objectum vilibile clarius atque di-
Rinctius exhibebit. Sintenim C, u circulorum retringentium cen-
tra; e circuli iis comperentes refractarii (inE F. CZ, cYE; horum-
que centra F; e; cum parallelorum punctis N, v incidentium Cint
retracti ND, Vd; dico cum Fore DZC SC. I) Ducantur enim
rectae NCC, V u V; hisque perpendiculares rectae FL, 8 n. estque
CN. V ∞:: CN. NP:: CF. FL. _E Y ~. KV:: PR, XD. eroO
Crationes sibi pares adjungendo) est C N. V∞. l- V ∞, KV:: C F
FL usm a 2. _ P. hoc estC NI, K V:: C F X Pa. FL X X P. est aurem
C.H. KV:: C. F, XP:: C F XPN. H O X BA. GuAREODEEE CxIE C F
X BA. FL XNB:: C F X ∞A. X P X PR; _ idCirCO F L X N P = X 8
X P a. indeque F L = 8 n. HInC COnSeqUeTU FOTE C F =CLC
3 P = XN; necnON F Z. - LOL eC - 2y; proindéque con
junctim CZ -CO=-rC = x y. hoc est CZ -C D= R E. - v S
hoc est demum DZ L sE; exhinc lux ab arcu res masis constipata,
in spatium quippe restrictius s8 concta) violentius operabitur; et
a tonce magis ad punctum accedente promanare visa punctum radians
distinctius exhribebit; id quod institurum fuit ostendere; quo rei passim
obserratx, nec exilis in perspiciliorum constructione usus rario con
StareE. I). In ordinem jam recidimus; ut puncti nempe longinqui
locum apparentem indasemus, oculi respectu quomodocunque siri.
quem in finem conficiendum venit impriris hujulmodi Problema, re-
etum detiniens in qua locus iste rerlatur:
TII Dato
F18. 128
23. EI Foct.