Note 22 — BOOK VIII. (continued 2)

[Pg 350][22] There can be no doubt that these are mattes, as will develop in Book IX. The German term in the Glossary for panes ex pyrite is stein, the same as the modern German for matte. Orpiment and realgar are the yellow and red arsenical sulphides. The cadmia was no doubt the cobalt-arsenic minerals (see note on p. 112). The "solidified juices" were generally anything that could be expelled short of smelting, i.e., roasted off or leached out, as shown in note 4, p. 1; they embrace the sulphates, salts, sulphur, bitumen, and arsenical sulphides, etc. For further information on leaching out the sulphates, alum, etc., see note 10, p. 564.