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)
eriora ſublati non eluctentur , ſed retrò ferãtur , aſſeres opercu lo , in orbis figurã formato , ſuperius tecti ſunt , inferius patent : quare uentis neceſsitate quadam putei quatuor iſtis foraminibus inſpirãtur . Attamen id genus machinam operculo tegere neceſſe nõ eſt in his locis , in quibus…
e-rara · Eisenbibliothek Schlatt · No known copyright restrictions. Free to use for anything.