Agricola, Georg
,
De re metallica Libri XII, Quibus Officia, Instrumenta, Machinae, ac omnia ...
,
1556
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<
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189
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rotundauerit, ut fieri ſolet, ubi omnia rectè fiunt, ſed faciat longiuſculam ut
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caudata uideatur, ſigno eſt calorem ipſum, qua cauda eſt, nimium eſſe: qua
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re catillum paruo unco ferreo, cuius manubrium item ſit ferreum &
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abbr
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longũ
">longum</
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ſeſquipedem, circumagito, ut altera pars æquè caleſcat ab igni.</
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N14F11
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type
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caption
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<
s
id
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N14F13
">P
<
emph
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italics
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aruus
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emph.end
type
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V
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ncus ferreus.
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type
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id
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id.001.01.199.1.jpg
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number
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67
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p
id
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type
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<
s
id
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N14F28
">Præterea ſi quando miſtura ſatis plumbi non habuerit, addito cum forci
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pe ferrea, uel cochleari æneo, cui manubrium prælongum eſt, tantum eius,
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<
expan
abbr
="
quantũ
">quantum</
expan
>
ſatis eſt. </
s
>
<
s
id
="
N14F32
">Ne uerò miſtura frigeſcat, id ipſum ante concalefacito: ſed
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ſatius eſt primo tantum plumbum, quanto opus eſt ad uenam excoquen
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dam, addere, quàm poſtea cùm dimidia excoctio perfecta fuerit: ne totum
<
lb
/>
<
expan
abbr
="
nõ
">non</
expan
>
abeat in fumum, ſed pars eius fixa permaneat. </
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<
s
id
="
N14F3E
">Porrò ubi calor ignis iam
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ferè conſumpſerit plumbum, tunc aurum argentumué, uarijs coloribus ef
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lb
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floreſcit: at ubi totum fuerit conſumptum, auri uel argenti reſidet in catillo:
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quam ſtatim ex fornacula eximito, maſſulamque, dum adhuc calet, ex eo ex
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trahito, ne cinis ad eam adhæreſcat: quod plerunque fit, ſi maſſula, ubi iam re
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frixerit, ex eo extrahatur. </
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<
s
id
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N14F4B
">Quod ſi etiam tunc cinis ad eam adhæſerit, cultro
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non radito, ne aliquid pereat, atque experimentum fiat falſum: ſed forcipe fer
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rea comprimito, ut cinis diſſiliat ipſo preſſu. </
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<
s
id
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N14F52
">Vtile denique eſt duo, triaué uni
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us uenæ experimenta facere eodem tempore, ut ſi forte unum non ſucceſſe
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rit, ex altero aut ſaltem ex tertio certior fieri poſſis. </
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<
s
id
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N14F59
">At interea dum artifex
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uenam experitur ne uehemens ignis calor oculos eius lædat, quia ſæpius in
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lb
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troſpicere, accurateque conſiderare omnia neceſſe eſt, utile erit ei ſemper in
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lb
/>
promptu habere tabellam ligneam ſubtilem, latam duos palmos,
<
expan
abbr
="
habentẽ
">habentem</
expan
>
<
lb
/>
<
expan
abbr
="
manubriũ
">manubrium</
expan
>
quo teneatur, atque per mediam latitudinem exciſam, ut per eam
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lb
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quaſi rimam quandam poſſit cernere.</
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type
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<
s
id
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N14F6F
">T
<
emph
type
="
italics
"/>
abellæ manubrium
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emph.end
type
="
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"/>
A. E
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type
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"/>
ius rima
<
emph.end
type
="
italics
"/>
B.</
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