216 
Procmlings of the Royal Society 
or some other quarter. For archaeologists it is an interesting ques- 
tion whether this deposit of drift contains chipped flints of the 
palaeolithic period. As yet I have found none.” 
In a paper in the Proc. Soc. Antiq. Scot, for 1881, new series, 
vol. hi. p. 262, I note that these parallel beaches “are also seen in 
the cultivated fields in the farm of Culmore in Stoneykirk.” 
The fact that many of the flints are not as large as a pea, led me 
to think that they were not imported by human agency. After 
repeated search, I found flints in situ in the strata of drift in the 
gravel pits at Dunragit station at 70 feet level, Genoch at 25, and 
at other places. This fact explains their presence on the raised 
beaches and in the bed of streams. 
Near Glenluce three successive sea-beaches are marked by three 
terraces, more or less distinct. The lowest, from 15 to 25 feet above 
the present sea-level, is well marked in many parts of Wigtownshire, 
and contains many caves worn in the Lower Silurian rocks. The 
two higher lines are carried to the north and west of Castle of 
Park, by sand hills, now cultivated. The second beach is about 
60 or 70, and the third about 100 feet above the present sea-level. 
In the highest the sand is covered by stratified gravel from 3 to 6 
feet deep. A fine section is seen in the cutting of the Girvan 
Railway on West Borland farm. I have found no flints there as yet ; 
but there are pebbles of a soft red sandstone, some of which are 
larger than I can lift. Such pebbles were sometimes used as 
whetstones, and for other purposes, by the ancient stone-workers. 
(A broken valve of a species of astarte was got about three feet 
below the surface at this section.) 
In Kirkmaiden parish I have found large rolled flints in the 
stratified gravel at the sea-beach near Drumore village, and smaller 
ones in two gravel pits near Logan House, about 50 feet above the 
sea. I got a single flint in the cutting exposed by the road at the 
side of the lighthouse buildings at the head of the Mull of 
Galloway, about 200 feet above the sea. They are also to be found 
in a gravel pit near Lochnaw Castle, about 175 feet above the sea, 
and at Machar, in Inch, about 75 feet. 
The great mass of the stones in our drift beaches and river beds 
consists of pebbles of grey Silurian sandstone. There are many 
specimens of granite, chiefly grey. Boulders and pebbles of red 
