Note 7 — Chapter VI · Industry, Commerce, and Social Organization; Fights, Wounds and Trepanation.

Heilbig: “Osservazioni sopra il Commercio del l’Ambra” (Acad. dei Lincei). We must not confound the yellow amber of the Baltic with the red amber found in Italy, in the mountains of Lebanon, and even in some lignites in the south of France. Sadowski: “Le Commerce de l’Ambre chez les Anciens.”