42 TORRS WARREN. 
right and left-handed), saws (some of them beautifully made), 
knives, trimmed-flakes, etc., and even the comparatively recent 
gun flints, are got. The latter are rare in Ayrshire; for instance, 
they probably do not average above one to five thousand of the old 
flints. Strike-a-lights, burnt flints, and cores, from which flakes 
were struck, are also found. The Torrs flint is generally of a grey 
colour, but occasionally some of it is reddish, yellowish, or pretty 
dark ; and nodules of the flint occur in the raised beach sands 
and gravels. Small bits of Irish chalk (limestone) are rare— 
similar bits having been got in Ayrshire. Pitchstone of a dark 
colour is rarely got in a “worked” state; this substance is also 
got in the antiquarian area of the drifting sands in Ayrshire, but » 
no pitchstone is known to occur in the rocks of the south-west of 
Scotland ; of course it is plentiful in Arran, but for my part I 
have never found im sf the particular quality that is got on the 
antiquarian ground of Wigton and Ayrshire sands, Also, the 
so-called flaker, evidently a flint tool much used in shaping the 
flint articles, is got occasionally. In the south-west of Scotland 
I do not know of any undoubted instances of polished flints having 
been found. Two specimens are known, but from their appear- 
ance it makes it difficult for one to accept them as “native.” 
Rubbed bits of hzematite occur, and it was probably used as a 
pigment. Flint in the Torrs is much more abundant than in 
Ayrshire, and in the old fleerish-days the Torrs was a “quarry” 
supplying a large part of the south-west of Scotland with strike-a- 
light flint, and from my point of view this is to be accounted for 
by the former locality being much nearer the source of supply— 
the Antrim flint-bearing chalk—than the latter. It has been 
suggested that the flint may have been brought from the Irish 
coast by floating ice, or even by man, but these theories do not 
work out, as large bits would have been brought by these means 
as well as small bits. All the flint nodules and the made “flints” 
are small, and as I suggested in 1879 (see Zrans. Geol. Soc., 
Glasgow, Vol. VI., p. 185), the nodules are more likely to have 
been brought attached to seaweeds. 
There is another substance, probably also from Antrim, that is, 
pumice, which is got both at the Torrs and in Ayrshire. (See 
Trans. Geol. Soc., Glasgow, Vol. X-, p. 340.) Portlock, in his 
History of Londonderry, says that pumice occurs 7” sifu in the 
