[Sussex] Mines in Sussex (was: Installing wireless cards)

[Brendan Whelan]

It was interesting to read about the gypsum mines.

There were flint mines on the downs. A couple of thousand years ago,
Cissbury ring was one of the first industrial sites in the country.

Sussex also had iron mines and many local names still remind us of iron
working e.g. "Hammerpond" indicates sites where iron was worked by water
power.

Brendan