in North Wales, a romantic river, forming the south-eastern boundary of Snowdonia, has the first part of its course in Caernarvonshire, which it afterwards divides from Merionethshire. It rises in that part of Snowdon adjoining Glyder Vach, and, dashing down an almost perpendicular precipice, produces a fine cascade. On reaching a narrow meadow-valley it turns southward and falls into the beautiful lake Llyn Gwynant, from which it issues at its southwestern extremity, and flows through a narrow beautiful vale studded with cottages among the rocks. Here it passes under the Pont-Bayn-y-Wyad, a stone bridge, whence a striking view of Snowdon presents itself. Further down the Glaslyn enters the fine lake of Llyn-y-Dinas, which it quits on the south, amid splendid scenery, and soon reaches the base of Dinas Emris, an isolated rock celebrated in early British history as the retreat of Vortigern. Its course then lies in a narrow vale between lofty hills till it arrives at the Pont-Suggin among most romantic scenery. Further down it flows through the lovely village of Bethgelert, whence it rushes on to the stupendous chasm of Aberglaslyn, whence again issuing, it dashes on through enchanting scenery, and at last glides silently into Cardigan Bay.