Note 078 Phocaea is not enumerated by Pliny (Hist. Nat. xxxv. 52) among the places productive of alum: he reckons Egypt as the first, and for the second the Isle of Melos, whose alum mines are described by Tournefort, (tom. i. lettre iv.,) a traveller and a naturalist. After the loss of Phocaea, the Genoese, in 1459, found that useful mineral in the Isle of Ischia, (Ismael. Bouillaud, ad Ducam, c. 25.)]

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The History Of The Decline And Fall Of The Roman Empire —Fall In The East —Chapter 65