Note 304 — Chapter XIII · THE AFRICAN PROVINCES.

That the Gaetulian purple is to be referred to Juba is stated by Pliny, H. N. vi. 31, 201: paucas (Mauretaniae insulas) constat esse ex adverso Autololum a Iuba repertas, in quibus Gaetulicam purpuram tinguere instituerat; by these insulae purpurariae (ib. 203) can only be meant Madeira. In fact the oldest mention of this purple is that in Horace, Ep. ii. 2, 181. Proofs are wanting as to the later duration of this manufacture, and, as the Roman rule did not extend to these islands, it is not probable, although from the sagum purpurium of the tariff of Zarai (C. I. L. viii. 4508) we may infer Mauretanian manufactures of purple.