Note note 8, p. 232 — BOOK VII.

[8] Ochra plumbaria. (Interpretatio,—pleigeel; modern German,—Bleigelb). The German term indicates that this "Lead Ochre," a form of PbO, is what in the English trade is known as massicot, or masticot. This material can be a partial product from almost any cupellation where oxidation takes place below the melting point of the oxide. It may have been known to the Ancients among the various species into which they divided [Pg 233]litharge, but there is no valid reason for assigning to it any special one of their terms, so far as we can see.