# Leibniz Legible — https://leibnizlegible.com
# Piece: https://leibnizlegible.com/api/records/27068/text
# Catalogue record: 27068 — für [Jean Paul de La Roque]
# Incipit: Cum nullum opinor
# Date: 1677
# Sender: Leibniz — Addressee: LaRoque
# Akademie-Ausgabe: AA III,2 N. 094
# Record in the Leibniz-Katalog: https://leibniz-katalog.bbaw.de/de/extended-search?id=27068&katnr=56568
# AA III,2: its series at leibnizedition.de: https://www.leibnizedition.de/de/reihen/reihe-iii/
# Work: https://leibnizlegible.com/work/00068606
# Title: Leibniz-Handschriften zur Varia Physica LH 37, 4
# Folios: Bl. 113–114 (from the shelfmark LH 37, 4 Bl. 113-114): 4 pages, canvases 229–232, page ids 00068606:0229 to 00068606:0232
# Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=00068606&page=229
# Lines: 94 recognised on 4 of 4 pages, mean confidence 0.95
# 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 113r — 00068606:0229
# Scan: One image of two folio pages side by side, registered by the library under both labels (also fol. 114v); this page is its right half.
# Source image: https://digitale-sammlungen.gwlb.de/content/00068606/jpgs/default/00000229.jpg
# Model: FoNDUE-GD_v2_ft_Leibniz, run 74, 2026-09-06T16:05:13Z — 27 lines, status machine
sum nullum opinor instrumentum ad detegenca naturae interiora
utilius miceoscopio repertum sit sluro scopia autem prastantiona ha–
etenus paratu difficitia fuerint ideorem naturae cultoribus gra-
tissimam me facturum putavi, si artificium exponerem quo intra unius
horae spatium ex igno apparatu magnus horum Microscopiuem
numerus parari possit, qua quoad amplificationem e claritatem
objecti praestantissimis hactenus adhibitis non cedant. Nam
pediculi caput in illis apparebit multo majus nuce jugtande; epedet
pulicis speciem chelarum iugentis caneri marini referent. Inven-
for eorum primus fuit Dominus d tudde inventio Algebraicis
celebris. Sed quem publica negotia ab his stuchiis avocarere: nec
ignota fuere praestantissimis quibusdam selathematicis, et inter
hoc ingeniosissimo Hookio, sed miror nondum ea in usum eut
garem transusse, cum tamen adeo facile parabitra taptiq
usus sint. Itaque dignam rem duxi, qua omnibus innote sceret
Totum negotium eo redit: sume frustrum vitri veneti purissimi:
hoc primum ignescat ad flammam videbio quasi crustulam
quandam ipsi obdua, quam facile anferes: quo facto satio
purum erit, jam ad flammum fila tenuia quot Tibueri ex erto
couces. quod facile est junctio ad flammam duobus vitro frustris
et mor arte diduitis unius vitrei extremitas deniqu flama
radio obiccta Aatim sese ipsa in globutum eo colsiget eo
minorem quo te tenuius fuerit fitum, e quo citius ficum
jam inquescens a flamma an feres. Globulus a zelquo
filo decerptus erit lens Suuroscopiea desiderata. Idem alites
praestabis facilius ex tempore, fila in promtu non habeas
Sed globulus non erit ita purus. Frustrum venetum tunde

## Folio 113v — 00068606:0230
# Scan: One image of two folio pages side by side, registered by the library under both labels (also fol. 114r); this page is its left half.
# Source image: https://digitale-sammlungen.gwlb.de/content/00068606/jpgs/default/00000230.jpg
# Model: FoNDUE-GD_v2_ft_Leibniz, run 74, 2026-09-06T16:05:13Z — 28 lines, status machine
unam particellam, imponet carboni. Ntamma parapadis
vel candelaoris flatuper tabulam quali scitiret aurifabri
ad solitandum utuntur in particeltam dizige, cavendo ne a
volet autcliscurzat per car bonem quod facile est statim glo-
bulum  rotundabitur particella. Itv0 tam facile est
ex ercitato ut aliquando quinque. aut sex lentes uno flati fecerim
quod si fila vitiea in prontu habeas aut emere possis iam par
ratu sine ullo flatu ad candelam lentes parabis
Usus in eo consistit: quod lentes quo sunt minores hoc magis
amplificent minusque obscurant objectum crassitie sua
rtago si in Camina foraminibus globulum colloces ob-
jecturn rite Mllustratur ab altera parte laminae
globulo quam proxime ad moveas: oculo intenim a parte
obscura existente magnitudinem obiecti et siguram mira
beze primum uti cliocas nihil pulice vivo aptruo ane
plezaque naturae opera sisans atten vata sint trans
parentia videbuntur, artiumquu vitae utitiem ne ipsa
quidem acus ferreae extremitate, se offerent structura
rerum magni forte ad medicince perfectionem usu so
 et species animarculorum apparebunt varia
qualia nuper imagua quae nodte super riperestetit nasi
observarit diligentifsimus LecWenhoekius. porro
ut liquores facilius insprcantur ac ne lentem cur pro
xime admoxeri clebent inficiant, posiumus sequentr arti
fiero uti sumatur tenuissimus tabulus vitheas prope
instar fili. On eum liquoz si ipoum tantum extro
mitate sua attingot sponte ascendet, atque. Ita fa
cillime pertam tenve diciphanum Cnam lenti provi

## Folio 114r — 00068606:0231
# Scan: One image of two folio pages side by side, registered by the library under both labels (also fol. 113v); this page is its right half.
# Source image: https://digitale-sammlungen.gwlb.de/content/00068606/jpgs/default/00000231.jpg
# Model: FoNDUE-GD_v2_ft_Leibniz, run 74, 2026-09-06T16:05:13Z — 29 lines, status machine
me admorendus est) observabitur. Corpora solida autem vat
ris modis secabimus ac lenti ad movebimus. ut inquo
industria Lecventio (ii plurimum laudanda atque imi-
tanda est. se res difficile erit multa invenire, qui bus facile
redclatur observatio si o et planum vitritenurs et puro
ad observandum solida et liquida utile erit quia proxim
lenti admoreri potest, objecto in aversa à lente tabula
vitreae parte existente. Unumautemtantum observandum
erit collocando lentem in foramine laminae quoniam
ea pars centis qua filo adhasit aut carboni incuburt
non perfecta rotunda est.
ut ea pars non objeito
aut oculo, sed interiori ut itadicam foraminis
pariet obversatur. efficiendum etiam ut
globutris velut per vim inta et in foramen ne faci
le elabatur.
Porre possunt in eadem lamina haberi plures
auomodi lentes gradu differentes iin q3 abi dctum succe
ce
sire aut per diversas partes admoven. Dende porerit alium
harum rerum curiosus integrum componere ut ita ducam
Masoeum Mhuroscopicum, si scilicet saminis afigat ob
jecta varia ex adverso lentium, ita ut cuitibet obiecto
peculiare muroscopium destinatum sit et afixum maneat
ita integrum naturae alioquin innisibilis theatrum. Aa
tim tibi aut amiero in cistula exhibebii ingentem in
vaniendi materiam. Sporro hic nostro naturae curio
si in ex haustas ut ita etiam fodinas habebunt, unde
experimenta pulchra eprobata, et vere nova quotu

## Folio 114v — 00068606:0232
# Scan: One image of two folio pages side by side, registered by the library under both labels (also fol. 113r); this page is its left half.
# Source image: https://digitale-sammlungen.gwlb.de/content/00068606/jpgs/default/00000232.jpg
# Model: FoNDUE-GD_v2_ft_Leibniz, run 74, 2026-09-06T16:05:13Z — 10 lines, status machine
errant: ouorum intra paucos annos maximum thesaurum cossi
gereposeumus: Nam non physica tantum e mathenatici atu
ce
curiosi sed e artifice et operani e foeminae statum pb
mucroscopia sabticare poterunt quibus materias qecastra
ctant examinent, etigant penitusque cognoscant ita quod
etar
ob bonorum microscopiorum raritatem, paruisdatu
nunc unusquisqueetiam de nulgo paulo curiosior
cum successe ac voluptate praestabit