Agricola, Georg
,
De re metallica Libri XII, Quibus Officia, Instrumenta, Machinae, ac omnia ...
,
1556
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digitos, ſuperiori parte
<
expan
abbr
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rotũdum
">rotundum</
expan
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. </
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<
s
id
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N1460F
">At bractea habet tria foramina, in utroque
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latere unum, tertium in poſteriori eius parte: quæ lata ſunt digitum, longa
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tres digitos: per ea tum cinis ex carbonibus candentibus decidit, tum ſpirat
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flatus penetrans in cameram, quæ ſub ipſa bractea eſt: itaque is flatus ignem
<
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/>
excitat. </
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>
<
s
id
="
N1461A
">
<
expan
abbr
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Quã
">Quam</
expan
>
ob rem hæc fornacula, quam metallici propter uſum ab expe
<
lb
/>
riendo appellant, apud chymiſtas ex uento nomen inuenit: uerum bracteæ
<
lb
/>
ferreæ pars, quæ è fornacula extat & eminet longa eſſe ſolet dodrantem, la
<
lb
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ta palmum. </
s
>
<
s
id
="
N14626
">In ea carbunculi locati expeditè in fornaculam per ipſius os for
<
lb
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cipe imponuntur, rurſusque, ſi res hoc poſtulat, ex fornacula exempti in ea
<
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dem reponuntur.</
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>
</
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type
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caption
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<
s
id
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N1462F
">B
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emph
type
="
italics
"/>
racteæ foramina
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emph.end
type
="
italics
"/>
A. E
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emph
type
="
italics
"/>
iuſdem pars quæ extat e fornacula
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emph.end
type
="
italics
"/>
B.</
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figure
id
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xlink:href
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number
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<
p
id
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N14643
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type
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main
">
<
s
id
="
N14645
">Ferrea autem fornacula conſtat ex quatuor bacillis ferreis, altis ſeſquipe
<
lb
/>
dem, inferius parumper diuaricatis & latis ut firmius ſtare poſſint: ex quo
<
lb
/>
rum duobus prior fornaculæ pars, ex duobus poſterior efficitur: cum iſtis
<
lb
/>
bacillis utriuſque partis conglutinata & conferruminata ſunt bacilla ferrea
<
lb
/>
tranſuerſaria, numero tria: prima ubi ad altitudinem palmi aſſurrexerunt:
<
lb
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ſecunda ubi ad altitudinem pedis: tertia in ſumma eorum parte. </
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>
<
s
id
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N14652
">Recta
<
lb
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quidem bacilla ca parte perforata ſunt, qua cum ipſis conglutinantur
<
lb
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tranſuerſaria, ut à lateribus in ea includi poſsint alia bacilla ferrea ſimi
<
lb
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liter utrinque tria numero. </
s
>
<
s
id
="
N1465B
">Itaque duodecim ſunt bacilla tranſuerſaria,
<
lb
/>
quæ tres efficiunt ordines, imparibus interuallis diſtinctos: etenim ab u
<
lb
/>
no bacillo recto ad alterum in infimo ordine eſt interuallum unius pedis &
<
lb
/>
quinque digitorum. </
s
>
<
s
id
="
N14664
">At in medio inter priora
<
expan
abbr
="
quidẽ
">quidem</
expan
>
bacilla & poſteriora eſt
<
lb
/>
ſpacium trium palmorum & unius digiti. </
s
>
<
s
id
="
N1466D
">Laterum uerò bacilla inter ſe di
<
lb
/>
ſtant tribus palmis et
<
expan
abbr
="
totidẽ
">totidem</
expan
>
digitis: ſed in ſupremo ordine inter priora qui
<
lb
/>
dem bacilla et poſteriora eſt interuallum duorum palmorum, inter laterum
<
lb
/>
uerò bacilla trium, ut iſto modo fornacula in ſumma parte fiat anguſtior: </
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