“As there are six kinds of metals, so I have also shown with reliable experiments... that there are also six kinds of half-metals: a new half-metal, namely Cobalt regulus in addition to Mercury, Bismuth, Zinc, and the reguluses of Antimony… — Georg Brandt Copy Share Image
“As there are six kinds of metals, so I have also shown with reliable experiments... that there are also six kinds of half-metals: a… — Georg Brandt Copy Share Image
