Of the two mountains from which the noble rivers which divide Wales
spring


Wales is divided and distinguished by noble rivers, which derive
their source from two ranges of mountains, the Ellennith, in South
Wales, which the English call Moruge, as being the heads of moors,
or bogs; and Eryri, in North Wales, which they call Snowdon, or
mountains of snow; the latter of which are said to be of so great
an extent, that if all the herds in Wales were collected together,
they would supply them with pasture for a considerable time. Upon
them are two lakes, one of which has a floating island; and the
other contains fish having only one eye, as we have related in our
Itinerary.

We must also here remark, that at two places in Scotland, one on
the eastern, and the other on the western ocean, the sea-fish
called mulvelli (mullets) have only the right eye.

The noble river Severn takes its rise from the Ellennith mountains,
and flowing by the castles of Shrewsbury and Bridgenorth, through
the city of Worcester, and that of Gloucester, celebrated for its
iron manufactories, falls into the sea a few miles from the latter
place, and gives its name to the Severn Sea. This river was for
many years the boundary between Cambria and Loegria, or Wales and
England; it was called in British Hafren, from the daughter of
Locrinus, who was drowned in it by her step-mother; the aspirate
being changed, according to the Latin idiom, into S, as is usual in
words derived from the Greek, it was termed Sarina, as hal becomes