the action of eating or wearing away by degrees, as by the action of acids on metals, &c.

CORRUSK, or Corriskin, a small lake in the isle of Skye, near its south coast, celebrated for the wild and majestic scenery by which it is surrounded. It is about two miles in length from north to south, half a mile in breadth, and contains several small islets.

Corriskin is frequently mentioned in Scott's poems. The opinion of that great author as to the unrivalled majesty of the scenery of the lake may be inferred from the following lines in the introduction to the fourth canto of *The Lord of the Isles*:

> Such feelings rouse them by dim Rannoch's lakes, > In dark Glencoe such gloomy raptures rise, > Or further where beneath the northern skies > Stalks wild Loch Erribol his caverns hoar; > But, be the ministral judge, they yield the prize > Of desert dignity to that dread shore > That sees grim Coolin rise, and hears Corriskin roar.