Carmarthenshire: But the principal river of the county, and one of the noblest in South Wales is the Twyi . . . The air of wildness and impetuosity, which marked its passage through its native hills, gradually softens as it advances into the more level vales . . . and changes imperceptibly into an aspect of greater grandeur and majesty.
Reverend T. Rees, 1815.

Ceredigion: Cardiganshire begins in the north in sand, pebbles and dunes and an estuary, that of the Dyfi which looks to a beautiful circle of the hills of mid-Wales.
W. M. Condry, 1970.

Pembrokeshire: Neyther perfect fquare longe nor round but fhaped with diverfe Corners, fome fharpe, fome obtufe, in fome places concave, in fome convex . . . where the wefterlye and fouth weft winds are found verye fharp and tempftuofe.
George Owen, 1603.