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# Title: Leibniz-Handschriften zur Mathematik LH 35, 15, 6
# Folio 14r, page id 00068208:0027
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pars III. excerptorum ex Hod Rio cyntra Hevelium
the
lochlearum tendebar (ivich bus hesp of scrpreces i bent) unon the cicular edges
Ha brass prismatical. box et eam lementabam verus tigtt, vith hard aud sofs
iment. Habebat the plate (Frustam, lamina) lurvum canalem, ground in
in it in the length thereof aptum ad servandum in medio bullam Horum mediorum
ope non est difficile Tendere  seu curvare hanc laminam seu fabulam in circultm
50, 60. 100. 1000 pedum radiorum. am theBrasseox cam aasitus be made to fill
or emptus, as there shall be occasion for te use thereof, so that the bubble may
be at anu time ceft, ol iohat bigness shall be desited. It roill be convenient
alsurue fo Varnish. Me in side of this brass- box, corth later Varnisse verus thike
aud Close, tam ut both to Keep it fron rustinus, aud also to prescrve it from
beinus corroded bys Aqua fortis pohenseever therestall be occasion tu. put
It in for the cleansinque tee invard tarnishaud foutnes of theGlassplate.
cirvitas superioris partis lateris libellae potest fieri, bu corindinus inferius latus
ofsucha lonu plateot looz inque Glass unon a convexglass- tool, 0f 50, 60, 100 1000,
fuot radius et polishrim thesame acoidinitus if that figure.
the curvitus ofthe sam plate ib expresse 2bfig.
signro
Gi Mi( NuC IL ABMH
Jam quiequid hac via freri potes aqua ge
ullis aeris idem fori pt corta thesameglasses ned apside dovr, ope exacti rotundi
et politi cylindri vel globuli vitrem, vel ex crystallo, cornelian, Agate aut alio lapide
exceedinus hard an oclose. Modo in 27 figura reprae sentati quae et
inversa tantum fius. 26tae. Quod enim illic culla reris quae summumpelit, id hir
facit globus qui tendit ad imum, sed opus est tum ut geobulus sit vatde rotundus ctum ut concavitas
tabulae sit exacte polita ac libera ab omni pulvere alioquin postet fderiut gevabiptus
vel cylinder indetito loco quiescere Non possum hic quin mentionem faciam
Curio se admodumlibellae a Christophoro de renno inventae pdo sumendo
porizonte every vay in a Circle Quod fit largo concavo potitotornato
ac polito ex sphaera valde carga, aud the limo of it gronud aud polistit on
a verus carge sphere a flatfor  nam horizontalicer locando, et
ce
exignam Higramyri guttulam infundendo, facile erit ope truius linibi positi verum
horhontem detegere. Unam ego inconvenientiam reperio, quod Mercurius habet
aliquod genus adhaesionis ad vitrum, sed exigugus globulus erystallinus malo
mederi potest. Quata rostiuduenti dexcelleneum
Avinta instrumenti excellentia est quod summae illae inconvementiae, in movendi instrio
una cum objecto possuit evitari; instrumento objectum sua sponte sequente. 1 matre
an axis of verus drus aud stronus diam firi  dignes in hynae satis crassit ci
po longitudine ne curvetur in inferiore ejus parte inedfigo in medio sivell
hoope vieo, eindus) porth Nnon  centrum vel punctum
chalybeum valde bene tornatum duratum e  acutum quod moveatur in foram ine conico
bound aud hoopd abont
apto ad ipsum recipiendum, etiam ex bono et durato chalybe: et ab altero satere
lonus arboris vel virgae figo aliam chatybeam portionem in ipso medio, quod qua
parte ligno immediate conriguum est, habet a Neck verus vell tourned aud
Lardued a litle taperinus fron te Wood vut idard ivichis to be moved in a
collar fit for it as; (hal Rero bus aud bus aud at f a convenieur distance fronthe
sand neck as at some cotat more theit halfthe radius oftheiustrument, is
huade a cystindricat neck, fitted Woith a Collar at braß coith aquint
aud other apparatus, large enouque to carrus the table aud instrument firin aud
true, corstrous stidinus or veldinus in idssocket after it be once set Ahis axis
by the Colcar aud Conical hole belou,  place parallel to the ayis, coich by some
tryals is easelus enour ajusted: aboit, the Cylindricat Neck, at the upper, ende of
this Axi, is a Sock et ot Brass fastned vditu a siven, toich socket classeth in
a a logutia sunt arm, loich llat at oneend a Bhall sat is fitteo into a soctiet