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# Title: [Physica, Id Est, Scientia Rerum Corporearum, In Decem Tractatus Distributa] Physica, Id Est, Scientia Rervm Corporearvm, In Decem Tractatvs Distribvta (shelfmarks Leibn. Marg. 7:3-4; ZEN Leibn. Marg. 7:3-4)
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PHZSTCE TRACTAEYS V.
LLL0 LaL
Explicatur, quomodo per collisto-
nem plicis, e ferri, ienis excuria-
rur: nempe colliguneur partes ignis,
quia cum ex illo aetritu; multae par-
tes excuciantur, cum humoris, tum
ignis, partes humoris facilius auo-
Tane; nec enim constane iis flamen-
tis, quibus ignis particula implican-
tur; hinc. metu vacui, partes ionis
congregantur, quas humoris parti-
culx ance dirimebane, isitur ignis
accenditur: vides idem principium:
hinc atcerieur silex, Rirc halieus
Sulphurcus, vel iplo oltactu percipi-
cur: hinc reiicies quemdam recen-
tiorem, qui maxime contendic,
ionem ex lilice non educi, quod lci-
licet idem Cilicis pondus remaneat,
quod quam Fallum (E, vel ipsis tiro-
nibus nocum est: alium quoquere
sicies, gui eZ FerEO, nOn vero ex CIli
ce, eduei rolebat, quod Falsissimum
est, aliognin DCIIHUIA FCrTUIM, fine
Eilice, Cuffceret:
Ouares, cur ignis exeustus, ve
plurimum deorlum cat.
Relpondeo, quognouerlum dil-
persi, re patet experientia; deor-
sum camen, ve plurimum irc, quia
mocum ferri excutientis sequitur, in
hoc nulla est difticaltas.
Duares, cur incer metalla, Tolum
ferrum ionem excutiat.
Respondeo, ferrum ea vi polle-
re, cum ratione duritiei, est enim
metallorum durissimum, cum racione
denticuloru, quos Abex in lon-
gum ductae, in ferro relinquunt; de
vero lingularis est penicus parrium
plexus in ferro, quod vel ex virture
magnetica, qua imbuitur omnino
constat, de quo intra: hinc a puro
tur: hinc ex gladiis, qui multo cha-
halybe iguis e slico melius excuri.
lybe constant, dum ad corem acuun-
cur, multus ignis exeutitur: verum
vero ex omni lapide ignis excuri
Polsic, certum est, ex omni lapidenon
cduter, ua ex cilice, prrire, crystal-
LLt. L2LLlL.
Explicatur, quomodo per affri-
ctum felinae pellis. Scintillae anolent:
constar enim felis multoigne, cuins
Particulae inter pilorum tilamina ad-
herenc,i sicur, quid mirum, li per aAri.
Ctum, cum homore limul educaneur;
acque adeo humore Facilius auolan.
ces collisantur, hincignis.
Duares, cur in cenebris scineillae
illae caneum appareant; quia propter
ivaiorem rim lucis diurna lux il.
la cenuis exeinsuitur; maior enim
lux minorem extinguie, re lupra di
ctum est, cum de luce.
Ouares, cur hyeme potius, quam
aestate, quia hyeme feles pinguiores
Cunc: adde, quod pinguis halitus
aeltare Facilius auolat, qui tamen
hreme, propter ambiens Frigus, in-
ter pilos dors concreleit, et (0loat
Frictu excitatur: huc renoca lam.
bencem illum ignem, qui aliquando
circarempora nonnullorum apparet,
ve de muleis narratur; aliquid simile
in equis aliquando vilum est: hue
demum renoca calorem illum, quem
ex attrictu, vel telae, vel panni, vel
lioni, Pencimus.
Ouares, cur scintilla illae, qua
ex Felinae pellis altrictu avolant, cre-
Picent.
Relpondeo, edi huiulmodi crepi.
tum, eo quod sine mulexe particutae
halibus, ione Fata, quali esenE tO-
tidem sulphurea iacula, vel Alopi.
puluere
10, _C.