Agricola, Georg
,
De re metallica Libri XII, Quibus Officia, Instrumenta, Machinae, ac omnia ...
,
1556
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342
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& præterea durum, atque quod facile duci poteſt. </
s
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<
s
id
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N1AE68
">Nam etſi ex uenis, quæ ipſi
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cum alijs metallis communes ſunt, conflatum liqueſcat, tamen aut molle eſt
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aut fragile. </
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<
s
id
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N1AE6F
">Tale uerò candens primò in minutas particulas ſecetur, & cum
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lapidibus liqueſcentibus
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expan
abbr
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cõminutis
">comminutis</
expan
>
permiſceatur: deinde in foco fornacis
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lb
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ferrariæ fiat catinus ex eodem puluere madido, ex quo fiunt catini, qui ſunt
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ante fornaces in quibus uenæ auri uel argenti excoquuntur: cuius latitudo
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ſit ad ſeſquipedem, altitudo ad pedem. </
s
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<
s
id
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N1AE7E
">Folles autem ſic collocentur, ut uen
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lb
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tum medio catino per narem inſpirent: tum catinus totus optimis carboni
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bus compleatur & circumcirca ponantur ſaxorum fragmenta, quæ ferri par
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lb
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ticulas & carbones ſuperfuſos coerceant: ſed
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abbr
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quamprimũ
">quamprimum</
expan
>
carbones omnes
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lb
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arſerint, & catinus excanduerit, folles uentum
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abbr
="
inſpirẽt
">inſpirent</
expan
>
, atque magiſter ſenſim
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lb
/>
infundat tantam ferri & lapidis
<
expan
abbr
="
liqueſcẽtis
">liqueſcentis</
expan
>
miſturam, quanta ſibi infunden
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lb
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da uidebitur: in quam, cùm liquefacta fuerit, mediam quatuor ferri maſſas,
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lb
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quarum ſingulæ
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expan
abbr
="
pendãt
">pendant</
expan
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libras triginta, imponat: & acri igni quinque uel ſex
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lb
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horis coquat, & bacillo immiſſo ferrum
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expan
abbr
="
liquatũ
">liquatum</
expan
>
ſæpius agitet, ut eius tenu
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lb
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iſſimam quanque particulam maſſarum parua foramina combibant: quæ par
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lb
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ticulæ ſua ui
<
expan
abbr
="
cõſumunt
">conſumunt</
expan
>
& dilatant craſſas maſſarum particulas: quæ molles
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lb
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& fermento ſimiles fiunt. </
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<
s
id
="
N1AEAF
">Poſtea magiſter miniſtro adiutus maſſam
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expan
abbr
="
unã
">unam</
expan
>
for
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lb
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cipe extractam incudi imponat, ut malleus à rota uiciſſim ſublatus et demiſ
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lb
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ſus ipſam dilatet: quam confeſtim adhuc calidam in aquam inijciat & tem
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peret: temperatam rurſus incudi imponat, eamque eodem malleo percuſſam
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frangat: mox inſpiciens fragmenta
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expan
abbr
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cõſideret
">conſideret</
expan
>
, utrum aliqua ex parte ferrum
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lb
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adhuc appareat, an totum quodammodo ſit denſatum & mutatum in
<
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abbr
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aciẽ
">aciem</
expan
>
. </
s
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s
id
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N1AEC8
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Deinde aliam atque aliam maſſam forcipe prehenſam & extractam in partes
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lb
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ſecet, tum miſturam recalfaciat, & ad eam addat recentis partem: quæ & in
<
lb
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locum illius, quam combiberunt maſſæ, ſuccedit, & uires eius, quæ reliqua
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lb
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fuit, reficit, & maſſarum particulas, rurſus in catinum impoſitas, facit purio
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res: quarum quanque, ut primum excalfacta fuerit, forcipe prehenſam malleo
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ſubijciat, & in bacilli
<
expan
abbr
="
figurã
">figuram</
expan
>
formet. </
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<
s
id
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N1AEDA
">Quod, cùm adhuc excandeſcit, in frigi
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lb
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diſſimam aquam
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expan
abbr
="
profluentẽ
">profluentem</
expan
>
, quæ prope ſit, inijciat: quomodo repente den
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ſatum in meram aciem uertitur: quæ ferro eſt multo durior & candidior.</
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<
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">C
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atinus
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A. F
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olles
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emph.end
type
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italics
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B. F
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type
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italics
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orcipes
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emph.end
type
="
italics
"/>
C. M
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type
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italics
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alleus
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type
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italics
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D. F
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emph
type
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italics
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lumen
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emph.end
type
="
italics
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E.</
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