66± MR DAVID MILNE HOME ON THE BOULDER-CLAY OF EUROPE. 



N.W. and N.N.W. At these places the general slope of the county is down 

 towards the N.W. Therefore the agent which ground down these hard conglo- 

 merate rocks must have moved up hill. 



On the trap hill of Croy, near Kilsyth, I lately found a conglomerate boulder, 

 which probably came from the hills of that rock, situated between Dumbarton 

 and Callander ; and on the felspar hill at Stonebyres, I found pebbles of coal 

 sandstone and clay ironstone, which apparently had come from the west. 



Sir James Hall describes a sandstone rock in Torwood, near Stirling, smoothed 

 and striated — the direction of the striations being N. 50° W. (Ed. R. S. Tr. vol. 

 vii. p. 200.) 



Berwickshire. — In the parish of Eyemouth there is a brickwork of boulder- 

 clay, in which lumps of water-worn coal and ironstone are occasionally found. 

 In sinking a well lately on the farm of Blackhill (Coldingham parish) through 

 boulder-clay, lumps of water-worn coal were found. The nearest place from 

 which these erratics could have been transported is East Lothian, situated to the 

 N.W. — the Lammermuir range of hills intervening. 



In the last-mentioned parish, lumps of hematite have been picked up on the 

 surface of the ground, resembling extremely the hematite worked on the Garlton 

 Hills, in East Lothian, situated about 30 miles to the W.N.W. 



In the parish of Dunse,* there is a rounded boulder of mica slate, about one ton 

 in weight, which must have come from the Highlands of Scotland. 



In the parish of Hutton, there is a brickwork situated on a mass of boulder- 

 clay, containing occasionally rounded pebbles and boulders. One of the boulders 

 is a mass of blue greenstone, weighing about eleven tons, and angular in shape. 

 The nearest parent rock is on Borthwick Hill, near Dunse, situated about ten 

 miles N.W. from the boulder; and its longer axis points in that direction. In 

 the same brickwork there are smaller boulders of greywacke, old conglomerate, 

 and chert, all of which have most probably come from the Lammermuir Hills, 

 situated to the north and west. An angular block of coal sandstone has also 

 been excavated which adjoined the large greenstone boulder. No such sandstone 

 is known in Berwickshire. I know of no place nearer than Mid-Lothian where 

 this peculiar sandstone occurs in strata. It is of a yellow colour, and rather soft 

 in texture. As the block is of an angular shape, its transportation could have 

 been effected only by drift ice. 



In Liddesdale, I found boulders of granite, which probably came from the 

 granite hills of Dumfries and Ayrshire ;f and within these few weeks I have found 

 in Northumberland, north of Hexham, several granite boulders, probably from 

 the same quarter. 



* This boulder was pointed out to me by Mr Stevenson of Dunse. 

 f Geology of Roxburghshire, Roy. Soc. Trans, vol. xv. p. 402. 



