320 THE BRITISH ISLES. 



DuMnMiTONsiiiUK includos a lowland tract along the north bank of the Clyde, 

 and a Highland region shut in between Loch Long and Loch Lomond, which rises 

 in Ben Vm-lich, near the head of the lake, to a height of 3,091 feet. Descending 

 the Clyde below Glasi^ow, we pass Dunglass Point, where the Roman wall 

 terminated, and which is surmounted by the ruins of a castle, and an obelisk 

 erected in memory of Henry Bell, the introducer of steam navigation. A few 



Fin;. 156.— Gkeenock and Helensburgh. 

 Soile 1 : 100,000. 



Foreshore. Depth to 2^ 

 Fathoms. 



1 Mile. 



miles below, at the mouth of the Leven, is the two-peaked basaltic rock of the 

 famous city of Dumbarton, the ancient capital of the kingdom of Strathclyde. 

 Dumbarton, owing to its commanding position, has ever played an important part 

 in military history. The Cumbrians called it Al-Cluyd, whilst the Scotch gave 

 it the name of Dun-Breton, and that name, slightly modified, it has retained to the 

 present day. It is the Balclutha of Ossian's poems. The castle which crowns the 



