Discovery of Late Glacial Imflemcnts in Galloivay. 323 



main results of this iiuj[uii'y might prove interesting, and all 

 the more so as it seems tliat many of the specimens must be 

 relegated to a hoary antiquity in so far as some, water-worn 

 or broken, and crusted more or less, have been found strati- 

 fied in sands and gravels and tills which skirt the coast from 

 the height of 400 ft. downwards. Implements, not by any 

 means the worst found, and some of them very elegant even, 

 have been extracted by me from the cut faces of nearly hori- 

 zontal beds of tilly and bouldery stratified gravel at heights 

 of from over 150 to 100 ft. on the heughs above Carricka- 

 niickie, at the Biawn, and the Old Mill, and on those over- 

 looking Dunorroch and Carrickgill Eigging. In the 100 ft. 

 stratified series fine implements have also been obtained, as 

 for instance in Mull Glen at Youchtrie Heugh, Portankil, KiH- 

 ness. Low Curghie, in the Clanyard Kilstay ancient channel, 

 between Grenan Wood and Terally, at Auchness, as well 

 as inland at Stoneykirk and at the head of Luce Bay where 

 the same terrace of sands and gravels, that formed the sea 

 bed in the time of the 100 ft. shore, is exposed. In Curghie 

 Glen, at a height of 150 ft., sands, and higher up other sands 

 and fire clay, are found overlying the two deep sheets of till, 

 under which the rocks are much fractured and crushed, while 

 over the sands there is a thin sheet of the boulder filled 

 surface clay. Where this clay and the various sands and 

 gravels underlying it are absent, a still older group of imple- 

 ments, the 225 ft. group, is ex]30sed. These have been found, 

 thus, dow^n to about 50 ft. above the present sea-level. Their 

 area has tongue-like projections down the glens. They spread 

 upwards, in some localities only, to a height of about 350 ft., 

 and in a very few even higher. Part of them may have 

 originally belonged to gravels and sands at a height of 275 ft. 

 (at least specimens like some of them have been exhumed 

 there). In that case they would have preceded the glaciers 

 that slipped into the sea on a 225-ft. shore, and their occur- 

 rence down to a height of 100 ft. would be explicable enough 

 without resort to the displacing power of ice. But it is 

 questionable if those found in the 275-ft. sands and gravels 

 are not older than these. Enough have not yet been turned 

 up to enable the determination to be made. Within the last 



