Georgii Agricolae De re metallica libri XII : qvibvs officia, instrvmenta, machinae, ac omnia denique ad Metallicam spectantia, non modò luculentißimè describuntur, sed et per effigies, ... (1561)
LIBER Oc TAVVS . … At duabus de cauſis uenæ uruntur : uel enim ut ex duris molles & fragi les factæ facilius aut tundi malleis pilis ue , aut mox excoqui poſsint : uelut res pingues cõburantur ſulfur ſcilicet , bi tumen , auripigmentũ , ſandaraca : ſed ſulfur ſæpius in uenis metallicis ineſt , & plerunque plus quàm…
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