Agricola, Georg
,
De re metallica Libri XII, Quibus Officia, Instrumenta, Machinae, ac omnia ...
,
1556
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<
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id
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N10018
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<
pb
pagenum
="
303
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xlink:href
="
001/01/313.jpg
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figure
id
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id.001.01.313.1.jpg
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xlink:href
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001/01/313/1.jpg
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number
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145
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<
p
id
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N19948
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type
="
main
">
<
s
id
="
N1994A
">Hæc hactenus pluribus uerbis: quæ tamen non intempeſtiue hoc loco
<
lb
/>
perſecutus uideri poſſum, quod ſine his omnibus metallorum conflatura,
<
lb
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ad quam nunc aggrediar, fieri non poſſit. </
s
>
<
s
id
="
N19951
">Venarum autem auri, argenti, æ
<
lb
/>
ris, plumbi nigri in fornacibus excoquendarum quatuor ſunt rationes: una
<
lb
/>
auri uel argenti diuitum, altera mediocrium, tertia pauperum, quarta
<
expan
abbr
="
earũ
">earum</
expan
>
,
<
lb
/>
quæ æs uel plumbum in ſe continent: ſiue precioſum metallum in eis inſit,
<
lb
/>
ſiue illo careant. </
s
>
<
s
id
="
N19960
">Prima uenarum excoctio perficitur in fornace, cuius os ad
<
lb
/>
tempus clauſum eſt: reliquæ tres in fornacibus,
<
expan
abbr
="
quarũ
">quarum</
expan
>
os ſemper patet. </
s
>
<
s
id
="
N19969
">Sed
<
lb
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primò dicam quomodo fornaces ad excoquendas uenas ſint præparandæ:
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lb
/>
& de prima excoquendi ratione. </
s
>
<
s
id
="
N19970
">Puluis quidem è quo focus & catinus con
<
lb
/>
fici ſolent, fit ex carbonibus & terra: carbones pilis ſubiecti
<
expan
abbr
="
cõtunduntur
">contunduntur</
expan
>
in
<
lb
/>
capſa: quæ priore parte ſuperius occluditur tabella, inferius ex eius parte pa
<
lb
/>
tente carbones in puluerem contriti excidunt. </
s
>
<
s
id
="
N1997D
">Pila uerò non ſunt præferra
<
lb
/>
ta, ſed lignea prorſus. </
s
>
<
s
id
="
N19982
">Attamen ima parte lato circulo ferreo cinguntur.</
s
>
</
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<
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id
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N19985
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type
="
caption
">
<
s
id
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N19987
">C
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emph
type
="
italics
"/>
arbones
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emph.end
type
="
italics
"/>
A. C
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emph
type
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italics
"/>
apſa
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type
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italics
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B. P
<
emph
type
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ila
<
emph.end
type
="
italics
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C.</
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