Note 37 — BOOK IX.[1] (continued 2)

Molybdaena is usually hearth-lead in De Re Metallica, but the German translation in this instance uses pleyertz, lead ore. From the context it would not appear to mean hearth-lead—saturated bottoms of cupellation furnaces—for such material would not contain appreciable silver. Agricola does confuse what are obviously lead carbonates with his other molybdaena (see note 37, p. 476).