.Clifton hall estate.* Elephants' bones and tusks were found 

 near Kilmarnock and at Kilmaurs, in Ayrshire, in strata which 

 Professor William Couper and Dr. Scouler examined and pro- 

 nounced to be the Till. At Kilmaurs a few sea-shells were associated. 

 At Chapel Hall, near Airdrie, the late Mr. John Craig discovered 

 elephants' remains in the upper Till, at an elevation of 350 feet above 

 the sea. These interesting specimens are preserved in the Hunterian 

 and Andersonian Museums, at Eglinton Castle, and in the Museum 

 of the Royal Society of Edinburgh. In the spring of 1855, Dr. A. 

 Beveridge, of Glasgow, found in a deposit of this age, near Bishop- 

 briggs, a portion of an elephant's tooth, which is preserved in the 

 Hunterian Museum. 



Beds Mow the Till 



9. The sands, gravels, and clays (No. 3) below the Till occur 

 rarely ; the Till generally resting on the carboniferous rocks. The 

 only locality in which they have yielded shells is that described 

 by Mr. Smith ;f it is the highest in Scotland at which shells have 

 been as yet discovered, namely, the surface 524 feet and the shell 

 bed 510 feet. The locality is near the Monkland Iron Works, 14 

 miles south-east of Glasgow. The few shells found were of the 

 same Arctic character as those in the Till. 



III. GLACIAL PHENOMENA. 



Scratched Boulders. 



10. The boulders from which this deposit receives one of its 

 designations are distributed largely through its entire mass, but 

 generally of greater size in the lower portions of the beds. They 

 consist of rocks which are found only to the north - west and 

 west of Glasgow ; and the same holds true with respect to the 

 loose surface boulders which are found over Clydesdale. These have 

 thus travelled up the river basin in a direction contrary to that 

 of the present drainage, or action of that force which might in 

 some cases be conceived adequate to the transport of at least the 

 smaller ones. They cover all rock formations alike, being found 

 along the summits of the trap ranges of Lennox and Cathcart, on 

 both sides of the basin, as well as over its interior and less elevated 

 districts. When we pass westwards of the coal tracts, into the dis- 

 trict where Devonian and primary rocks prevail, we find that the 

 transport has not been mutual ; that region has received no boulders 

 from the basin of the Clyde, though the limestones, sandstones, and 



* Wer. Mem., iv., 58. f Jour. Geol Soc., vi., 386, 1850. 



C 



