Note 6 — Chapter VII · Triumphs of the Water-world

‘There is another wonder, to wit Aber Ỻyn Ỻiwan. The water from the mouth of that river flows into the Severn, and when the Severn is in flood up to its banks, and when the sea is also in flood at the mouth of the above-named river and is sucked in like a whirlpool into the pool of the Aber, the sea does not go on rising: it leaves a margin of beach by the side of the river, and all the time the Severn is in flood up to its bank, that beach is not covered. And when the sea and the Severn ebb, then Ỻyn Ỻiwan brings up all it had swallowed from the sea, and that beach is covered while Ỻyn Ỻiwan discharges its contents in one mountain-like wave and vomits forth. Now if the army of the whole district in which this wonder is, were to be present with the men facing the wave, the force of it would, once their clothes are drenched by the spray, draw them in, and their horses would likewise be drawn. But if the men should have their backs turned towards the water, the wave would not harm them6.’