Agricola, Georg
,
De re metallica Libri XII, Quibus Officia, Instrumenta, Machinae, ac omnia ...
,
1556
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<
archimedes
>
<
text
>
<
body
>
<
chap
id
="
N10018
">
<
p
id
="
N14F87
"
type
="
main
">
<
s
id
="
N151EE
">
<
pb
pagenum
="
193
"
xlink:href
="
001/01/203.jpg
"/>
propter uim liqueſcendi, quæ ineſt in ſpuma argenti, recrementum exſuda
<
lb
/>
uerit, eximunt: refrigeratam à recremento purgant, rurſusque eam comminu
<
lb
/>
unt: cum eius centumpondio ſeſcuntiam globulorum
<
expan
abbr
="
plumbeorũ
">plumbeorum</
expan
>
miſcent:
<
lb
/>
inijciunt in alterum catillum fictilem: quem ſub tegulam ardentis fornacu
<
lb
/>
læ collocant adijcientes ad miſturam
<
expan
abbr
="
paucũ
">paucum</
expan
>
puluerem alicuius additamen
<
lb
/>
ti compoſiti, quod uenas liquefacit: liquatam eximunt: refrigeratam à
<
expan
abbr
="
recremẽto
">recre
<
lb
/>
mento</
expan
>
purgant. </
s
>
<
s
id
="
N15221
">Poſtremò eam
<
expan
abbr
="
coquũt
">coquunt</
expan
>
in catillo cinereo, quoad omne plum
<
lb
/>
bum exhalauerit, ſolumque argentum remanſerit. </
s
>
<
s
id
="
N1522A
">Nigri autem plumbi
<
expan
abbr
="
uenã
">uenam</
expan
>
<
lb
/>
iſto modo experiri conuenit: lapidis plumbarij puri ſemunciam, & chryſo
<
lb
/>
collæ, quam boracem uocant, tantundem
<
expan
abbr
="
cõminuito
">comminuito</
expan
>
, permiſceto, in
<
expan
abbr
="
catillũ
">catillum</
expan
>
<
lb
/>
fictilem inijcito, carbonem
<
expan
abbr
="
ardentẽ
">ardentem</
expan
>
in media eius parte collocato: quampri
<
lb
/>
mum chryſocolla crepuerit, & lapis plumbarius liquefactus fuerit, quod ci
<
lb
/>
to eis accidit, carbonem à catillo amoueto: & in ipſius fundo plumbum reſ
<
lb
/>
debit: quod expendito: & eius portionem, quam ignis conſumpſit, ad calcu
<
lb
/>
los reuocato. </
s
>
<
s
id
="
N1524B
">Si uerò etiam ſcire uolueris, quota argenti particula in plum
<
lb
/>
bo inſit, id in catillo cinereo excoquito, uſque dum omne plumbum exhalet. </
s
>
<
s
id
="
N15250
">
<
lb
/>
Vel uenam plumbi qualemcunque urito, lauato, ramenti lotura collecti cen
<
lb
/>
tumpondium & pulueris compoſiti, qui uenas liquefacit, tria centumpon
<
lb
/>
dia commiſta in catillum fictilem inijcito, & in circulum ferreum colloca
<
lb
/>
to ut liqueſcat: refrigeratum à
<
expan
abbr
="
recremẽto
">recremento</
expan
>
purgato: atque reliqua, ut
<
expan
abbr
="
dictũ
">dictum</
expan
>
eſt,
<
lb
/>
perficito. </
s
>
<
s
id
="
N15264
">Vel accipito uenæ præparatæ uncias duas, æris uſti drachmas
<
lb
/>
quinque, uitri aut recrementi eius in puluerem redacti unciam unam, ſalis
<
expan
abbr
="
ſemũciam
">ſe
<
lb
/>
munciam</
expan
>
, & miſceto: atque miſturam in
<
expan
abbr
="
catillũ
">catillum</
expan
>
triangularem conijcito, eumque
<
lb
/>
lento igni calefacito ne
<
expan
abbr
="
diſrũpatur
">diſrumpatur</
expan
>
. </
s
>
<
s
id
="
N15279
">Vbi miſtura liquefacta fuerit ignem fol
<
lb
/>
le magis excitato: deinde ex prunis eximito catillume, t ſinito refrigeſcere in
<
lb
/>
aere: aqua uerò non perfudito, ne plumbi maſſula nimio frigore commota
<
lb
/>
cum recrementis miſceatur: atque ſic experimentum fiat falſum: poſtquam au
<
lb
/>
tem catillus refrixerit, in eius fundo inuenies maſſulam plumbeam. </
s
>
<
s
id
="
N15284
">Vel acci
<
lb
/>
pito uenæ uncias duas, ſpumæ argenti
<
expan
abbr
="
ſemunciã
">ſemunciam</
expan
>
, uitri Venetiani drachmas
<
lb
/>
duas, halinitri ſemunciam. </
s
>
<
s
id
="
N1528F
">Quod ſi uena difficulter excoquitur, ad eam ad
<
lb
/>
ijcito ſcobem ferri elimatam, quæ, quia ualde calefacit,
<
expan
abbr
="
purgamẽta
">purgamenta</
expan
>
facile ſe
<
lb
/>
cernit à plumbo ac reliquis metallis. </
s
>
<
s
id
="
N1529A
">Quinetiam uena plumbi nigri, ut con
<
lb
/>
uenit, præparata conijcitur in catillum, & ſolum ad eam adijciuntur arenæ à
<
lb
/>
lapide facile liqueſcente reſolutæ, aut ſcobs ferri elimata, & experimentum
<
lb
/>
perficitur. </
s
>
<
s
id
="
N152A3
">Venam uerò plumbi candidi hac ratione experiri poteris: eam
<
lb
/>
primò urito, deinde comminuito, tum lauato: ramentum lotura collectum
<
lb
/>
rurſus urito, comminuito, lauato: eius centumpondium unum &
<
expan
abbr
="
dimidiũ
">dimidium</
expan
>
<
lb
/>
cum chryſocollæ, quam boracem nominant, centumpondio
<
expan
abbr
="
cõmiſceto
">commiſceto</
expan
>
: ex
<
lb
/>
miſtura, aquis madefacta, maſſulam formato, poſtea carbonem magnum &
<
lb
/>
teretem perforato. </
s
>
<
s
id
="
N152B8
">Foramen
<
expan
abbr
="
aũt
">aut</
expan
>
altum ſit palmum, ſuperius latum digitos
<
lb
/>
tres, inferius anguſtum: hoc, cùm collocatur carbo, inferiorem locum, illud
<
lb
/>
ſuperiorem occupet. </
s
>
<
s
id
="
N152C3
">Collocetur uerò in catinum fictilem, & undique ad eum
<
lb
/>
apponantur carbones ardentes. </
s
>
<
s
id
="
N152C8
">Vbi uerò carbo perforatus ignem conce
<
lb
/>
perit, maſſula in ſuperius eius foramen imponitur, & lato carbone ardente
<
lb
/>
tegitur: atque pluribus e arbonibus circum eum appoſitis folle acris ignis ex</
s
>
</
p
>
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