Caesar do we find any coins of silver or bronze issued, though he
testifies to their existence. The use of silver shows a marked
advance in metallurgy, and is probably connected with the simultaneous
development of the lead-mining in the Mendip Hills, of which about
this time we first begin to find traces.



SECTION E.

Pytheas trustworthy--His notes on Britain--Agricultural
tribes--Barns--Manures--Dene Holes--Mead--Beer--Parched
corn--Pottery--Mill-stones--Villages--Cattle--Pastoral tribes--Savage
tribes--Cannibalism--Polyandry--Beasts of chase--Forest trees--British
clothing and arms--Sussex iron.

E. 1.--The trustworthiness of Pytheas is further confirmed by the
astronomical observations which he records. He notices, for example,
that the longest day in Britain contains "nineteen equinoctial hours."
Amongst the ancients, it must be remembered, an "hour," in common
parlance, signified merely the twelfth part, on any given day, of
the time between sunrise and sunset, and thus varied according to
the season. But the standard hour for astronomical purposes was the
twelfth part of the equinoctial day, when the sun rises 6 a.m. and
sets 6 p.m., and therefore corresponded with our own. Now the longest
day at Greenwich is actually not quite seventeen hours, but in the
north of Britain it comes near enough to the assertion of Pytheas to
bear out his tale. We are therefore justified in giving credence
to his account of what he saw in our country, the earliest that we
possess. He tells us that, in some parts at least, the inhabitants