Agricola, Georg, De re metallica Libri XII, Quibus Officia, Instrumenta, Machinae, ac omnia ..., 1556

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1 165[Figure 165]
Quarta ratio uenæ argenti uiui excoquendæ ita ſe habet. Olla maior ſu­
per tripodem ſtatuta, completur uena comminuta: cui ſuperfunditur arena
uel cinis duos digitos craſſus, & tunditur: mox huius ollæ ori alterius ollæ
minoris os imponitur, & luto obturatur, ne ſpiritum emittat: uena igni co­
cta exhalat argentum uiuum: quod per arenam uel cinerem penetrans fer­
tur in ollam ſuperiorem: ubi in guttas concreſcens, recidit in arenam uel ci­
nerem: quo lauato, argentum uiuum colligitur.
Olla maior A. Minor B. Tripus C. Vas
in quo lauatur arena D.

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