Note 51 — BOOK IX.[1] (continued 2)

In this section, which treats of the metallurgy of plumbum candidum, "tin," the word candidum is very often omitted in the Latin, leaving only plumbum, which is confusing at times with lead. The black tin-stone, lapilli nigri has been treated in a similar manner, lapilli (small stones) constantly occurring alone in the Latin. This has been rendered as "tin-stone" throughout, and the material prior to extraction of the lapilli nigri has been rendered "tin-stuff," after the Cornish.