Glaciers in Scotland. 197 



Leuk. The tillage of Amulrie, Dr Buckland conceives, is situated on a 

 group of low moraines, and lie states that the road, for two or three miles 

 towards Glen Almond, passes over similar accumulations, and surfaces of 

 mica-slate, rounded by glaciers. The proofs of the action of ice in and 

 near South Earn, consist, between Crieff and Comrie, in irregular terraces 

 of gravel, or detritus of moraines ; and in rounded as well as guttered sur- 

 faces of slate-rocks at the west end of Comrie, near the bridge; and in 

 the woods adjacent to Lawers' House. In the valley of th, Lednoch, 

 Dr Buckland found farther proofs of glacial action, and at points where, 

 if the glacier theory were true, he had assumed they ought to exist. Im- 

 mediately above the gorge called the Devil's Cauldron, particularly near 

 Tentallich, he noticed rounded surfaces of greenstone partially covered 

 with moraines ; and at Kanagart, also immediately above the gorge, a 

 small cluster of moraines, easily separable into lateral and terminal. Two 

 miles higher, at the confluence of Glen Lednoch with Glen Garrow, a 

 distinct medial moraine forms an insulated ridge in front of the point of 

 union of the two valleys. The farm-house of Invergeldy is said to 

 stand on the detritus of a moraine, and the surface of the granite at In- 

 vergeldy, from which the stone was procured to erect Lord Melville's 

 monument, near Crieff, is stated to bear evidence of having been rounded 

 by glacier action. On a hill of trap, half a mile south of the farm of Lurg, 

 on the left side of Glen Lednoch, a striated and polished surface is dis- 

 tinctly preserved. In Glen Turret, Dr Buckland found on the shoulder 

 of the mountain, immediately above the south-west extremity of the Loch, 

 a vast lateral moraine, in a deep ravine, and at the falls of Turret, at the 

 lower extremity of the gorge, an extensive lodgment of moraines, whilst 

 at the upper end of the gorge on the left bank of the river, near a gate 

 which crosses the road, he noticed polished and furrowed surfaces of 

 slate-rocks, at precisely the place where, theoretically, he had asserted 

 they ought to be found. The banks of Loch Earn, and the surrounding 

 count rv° afforded Dr Buckland the following evidence of glaciers having 

 existed in that district. On the north bank of the Loch, he observed 

 rounded and furrowed surfaces and portions of lateral moraines exposed 

 in roadside sections, and at Loch Earn Head, a group of conical moraines 

 occupying the middle of the valley, at a point where, had the detritus 

 been brought bv a rapid current, it must have been propelled into the 

 loch, but if brought by a glacier would have been deposited as a terminal 

 moraine. Further evidence of moraines are stated to occur in the valley 

 of the Teith from Loch Catharine to Callender ; and the lofty parallel 

 terraces in the same valley are considered to be detritus of moraines, mo- 

 dified by the great floods which accompanied the melting of the ice. One 

 of them, near Callender, has been hitherto believed to be a Roman camp, 

 and has been mapped as such. The little lakes on the right bank of the 

 Teith, four miles east of Callender, Dr Buckland considers due to a series 

 of moraines obstructing the drainage of the country; and the first table- 

 land, after crossing the river towards Doune, to bo composed of re-ar- 



