Note 39 — Chapter XVIII
Reading edition
A well, in the language of those seas, denotes one of the whirlpools, or circular eddies, which wheel and boil with astonishing strength, and are very dangerous. Hence the distinction, in old English, betwixt wells and waves, the latter signifying the direct onward course of the tide, and the former the smooth, glassy, oily-looking whirlpools, whose strength seems to the eye almost irresistible.