Other flint pits point to the labours of the industrious miner, and the probable transport of the raw material to distant localities where the prized flint could only be procured from traders, who bartered it for other needful supplies. An interesting group of flint pits of this latter class has been subjected to careful exploration by the Rev. Canon Greenwell, with the ingenious inference already noted, of the traces of a left-handed workman among the flint-miners of the Neolithic age. This was based on the relative position and markings of two picks fashioned from the antlers of the red deer, corresponding to others of the ancient miners’ tools found scattered through the long-deserted shafts and galleries of the flint pits. The shallow depressions on the surface, which guide the explorer to those shafts of the ancient workmen, are analogous to others that reveal the funnel-shaped excavations hereafter described, on Flint Ridge, the sites of ancient flint pits of the American arrow-makers. In France, Germany, and Switzerland, as well as in Great Britain, many localities are no less familiar, on which the refuse flakes, and chippings of flint and other available material, show where they have been systematically fashioned into implements. The Museum of the Society of Antiquaries of Scotland has acquired numerous interesting additions to its collections of objects of this class by encouraging systematic research. From the sands at Colvin and Findhorn, Morayshire; Little Ferry, Sutherlandshire; and from Burghhead, Drainie, and Culbin sands, Elginshire, nearly seven thousand specimens have been recovered, consisting chiefly of flint flakes and chippings; but also including several hundred arrow heads, knives, and scrapers, many of them unfinished or broken.