to have been early exhausted, the name _Cassiterides_, the Tin
Lands, came to signify exclusively the western peninsula of Britain.
Herodotus, in the 5th century B.C., knew this name, but, as he frankly
confesses, nothing but the name.[15] For the whereabouts of this El
Dorado, and the way to it, was a trade secret most carefully kept by
the Phoenician merchants of Cadiz, who alone held the clue. So jealous
were they of it that long afterwards, when the alternative route
through Gaul had already drawn away much of its profitableness, we
read of a Phoenician captain purposely wrecking his ship lest a Roman
vessel in sight should follow to the port, and being indemnified by
the state for his loss.



SECTION D.

Discoveries of Pytheas--Greek tin trade _viâ_ Marseilles--Trade
routes--Ingots--Coracles--Earliest British coins--Lead-mining.

D. 1.--But contemporary with Aristotle lived the great geographer
Pytheas; whose works, unfortunately, we know only by the fragmentary
references to them in later, and frequently hostile, authors, such
as Strabo, who dwell largely on his mistakes, and charge him with
misrepresentation. In fact, however, he seems to have been both an
accurate and truthful observer, and a discoverer of the very first
order. Starting from his native city Massilia (Marseilles), he passed
through the Straits of Gibraltar and traced the coast-line of Europe
to Denmark (visiting Britain on his way), and perhaps even on into the
Baltic.[16] The shore of Norway (which he called, as the natives still
call it, Norgé) he followed till within the Arctic Circle, as his