# Leibniz Legible — https://leibnizlegible.com
# Piece: https://leibnizlegible.com/api/records/52998/text
# Catalogue record: 52998 — Leibniz an Orban
# Incipit: Mire recreor, qvoties aliqvid a TE accipio
# Date: 1713-06-01
# Sender: Leibniz — Addressee: Orban
# Record in the Leibniz-Katalog: https://leibniz-katalog.bbaw.de/de/extended-search?id=52998&katnr=21735
# The Leibniz-Archiv's transcriptions of the letters of 1713 (pre-edition): https://www.gwlb.de/leibniz/digitale-ressourcen/repositorium-des-leibniz-archivs/laa-transkriptionen-1713
# Work: https://leibnizlegible.com/work/DE-611-HS-860751
# Title: LBr. 699 · Orban
# Folios: Bl. 92–93 (from the shelfmark LBr 699 Bl. 92-93): 4 pages, canvases 185–188, page ids DE-611-HS-860751:0185 to DE-611-HS-860751:0188
# Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=DE-611-HS-860751&page=185
# Lines: 102 recognised on 4 of 4 pages, mean confidence 0.93
# Catalogue: Leibniz-Katalog / Arbeitskatalog der Leibniz-Edition (https://leibniz-katalog.bbaw.de/), ed. Arbeitsstelle Potsdam I der Berlin-Brandenburgischen Akademie der Wissenschaften, CC BY 4.0.
# 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, page by page: a "## Folio <label> — <page id>" line ("## Canvas <n>" where no folio label is recorded), "# " lines naming its source image and model, then its recognised lines in reading order, one per line.

## Folio 92r — DE-611-HS-860751:0185
# Scan: One image of two folio pages side by side, registered by the library under both labels (also fol. 93v); this page is its right half.
# Source image: https://digitale-sammlungen.gwlb.de/content/DE-611-HS-860751/jpgs/default/00000185.jpg
# Model: FoNDUE-GD_v2_ft_Leibniz, run 79, 2026-09-07T03:33:42Z — 36 lines, status machine
R. P. orbanio contessano Electorali
dusseldorpu
crendissime ale
untor Honoratissime
ire recreor, quoties aliquid a TE accipio
bonae podetudinis,
quid me et tua solutis, et continuatae erga
mebene volentiae certiorem reddit
phurimum debeo quod subinde de rebus
sirensibus, aliisque praeclaris novellis literariis
et publicis me doces. tua, etiam egregia medita
speculum causticum ex frustis compositum usum abere
attingis.
posset in chymicis ad puriorem ignem suppeditandum
qui sine tumis empyrenmaticis corpora iminutet,
calcinet, sublimet, extillare cogat. Sed concavum
verum habet aliquid ab illis non praestandum, ut recte
mones, quod nempe ipsas species in aere exhibet. Cujus
Pradiorum sibi proximorum
ei fundamentum e concursus tangentium
dant
ex. gr. sit speculum concavum ABCZ in id incidant rudi
k
C
DA, EB, FC radiusA reblectatur in Aradius EB in BI
radia in
ratius  FC in CKibit nter sectio duorum radiorum
flexorum sibi prorem
eorum radiorum sie
ACCK et LL 1A P
et ita innumerorum aliorum, distantia infinite parva
concarsus
aqua
a se remotorum delineabit in agre, vel alio diaphano
ineam quandam visibilem, et ut sit dicam speciem realer
RMNP quodsi AB1Z sit non linea seu fectio, sed sepesficio specal, etiam species

## Folio 92v — DE-611-HS-860751:0186
# Scan: One image of two folio pages side by side, registered by the library under both labels (also fol. 93r); this page is its left half.
# Source image: https://digitale-sammlungen.gwlb.de/content/DE-611-HS-860751/jpgs/default/00000186.jpg
# Model: FoNDUE-GD_v2_ft_Leibniz, run 79, 2026-09-07T03:33:42Z — 32 lines, status machine
quandam
realis RMNP, superficies fiet et imagirem dabit.
Aet B, et it m B et C, item C et Q
Concipiendum, autem est puncta A, B,C, Z, ad eoqe puncta
va N et Pve  et ita porro,
Ment,  esse sibi quam proxima seu habere distantiam interse
indefinite parvam. Ita radii siunt tangentes linea curvae
ipsorum concursu formata. Si radi incidentes essent
paralleli, et speculum esset parabolicum axem habens
parallelum radiis omnes radii reflexi concurrerent
in uno puncto cese sua quod vocatur Focus. sed
quando speculum est circulare, non fit verus Foeus
sed  eo figura ex concursibus formata, habe
magnitudinem, et quod ammodo exhibet obj ecti
maginem  eamque velut in
sie concursus mudiorum
aero suspensam.
format lineam quandam lucidam in superficie aquae
ab interiore vitri superficie reflexam. Si aquam
vitro infundas, et candelam aclersam in vicinia
colloces. Htic ergo concursus radiorum sire reflexo
rum sive refractorum est fundamentum hujus modi
A methodum
specierum realium, et praebet fundamentum Geome
tricam eas indagandi
Vellem processum specula sine foliis conficiendi hase
remus ab aliquo qui ipse fuisset expertus, aut eb expertis
oculari fide didiesset. luns processus miri valde
cidetur verisimilis
Mechanicus quidam Berolinum aHtulerat
specaum concavum ligneum, auri folios obducum
M et N

## Folio 93r — DE-611-HS-860751:0187
# Scan: One image of two folio pages side by side, registered by the library under both labels (also fol. 92v); this page is its right half.
# Source image: https://digitale-sammlungen.gwlb.de/content/DE-611-HS-860751/jpgs/default/00000187.jpg
# Model: FoNDUE-GD_v2_ft_Leibniz, run 79, 2026-09-07T03:33:42Z — 29 lines, status machine
et expolitum, quod satis promte fundebat metalla
illud notattm dignum erat, quod carbo ordens in foco speculi
collocatus et folle fortiter agitatus, candelam  hypocancti
oge vel camerae bongi mediocris longitudine distan
tem cccenderet, tanquam in alio foco, quasi esset Ellipsis. Nempe
circulus imitatur quodam modo Ellipsin quam osculatur. Circulum
autem osculantem voco omnium intes tangentium maximum; qua
de re multa olim dixi in Actis eruditorum Lipsiensibus.
Mirum est  literas in phlmone vervecis repertas
Ejusmod literae olim repertae sunt in pisce prope Hamburgum
capto, fuitque ea de re edita disserta
 apud vos
a
santicum italicum juveni princiri Bivium Herculis exhibens
perplacet. Multos versus perelegantes invenio in
re fiae sentatione couraginum politicarum quam misistin se
Litulus habet placentiae fuisse editum libellum. Sed videtur prodiisse
in Germania X vellem nosse autorem. Non dubitu quim egregius
poeta futurus sit, si magis limam adhibeat
Noechebe Vix est miliu quo quae mittis rependam. Et
devotionem
fortase jam habes, quod hic mitto carmen Hispanicum in pietatem
1A accip15)
imperaticis, quae in Domum Austracam recepta, primi ejus amplificatoris
Dudolpri Hobspurgici pietitem Barciione imitata est, sinc exempo lo
Reginarum Hispaniase, sed maximo popule applansu
Gandeo imperate propositum faverse scientis: qua in re
se
ua plunituum poteut gratui et autontas, ego qualicunu adsado

## Folio 93v — DE-611-HS-860751:0188
# Scan: One image of two folio pages side by side, registered by the library under both labels (also fol. 92r); this page is its left half.
# Source image: https://digitale-sammlungen.gwlb.de/content/DE-611-HS-860751/jpgs/default/00000188.jpg
# Model: FoNDUE-GD_v2_ft_Leibniz, run 79, 2026-09-07T03:33:42Z — 5 lines, status machine
e optem, non aliam quaerens quam publicam utili
tatern. Quod superest vale et fave. Dabam Hanover
1
Juni 1712
det