fire-producer.[10] He refers to the ingenious derivation of the word _silex_ as given by Vincent of Beauvais, in the _Speculum Naturæ_, “Silex est lapis durus, sic dictus eo quod ex eo ignis exsiliat,” and he recalls a more remarkable reminiscence of the evoking of fire in the Neolithic if not in the Palæolithic period. Pliny informs us (lib. vii. cap. 56), that it was Pyrodes, the son of Cilix, who first devised the way to strike fire out of flint; “A myth,” says Sir John Evans, “which seems to point to the use of silex and pyrites (from πῦρ) rather than of steel.” In reality the flint and pyrites lie together in the same lower strata of the chalk. As the ancient flint-miners sunk their pits in search of the levels where the flint abounds they would meet with frequent nodules of pyrites. The first grand discovery of the fire-producer may have resulted from the use of the pyrites as a mere hammer-stone to break up the larger flints. But whatever was the source of this all-important discovery, it dates among the earliest manifestations of human intelligence. Nodules of iron pyrites have been found in the caves of France and Belgium, among remains pertaining to the Palæolithic age, and are among the most interesting disclosures of the greatly more modern, though still prehistoric age of the barrows and cairns of the Allophylian period of Britain, and of Western Europe generally. Sir R. C. Hoare records the finding, among the contents of a cinerary urn, in a Wiltshire barrow, “chipped flints prepared for arrow heads, a long piece of flint, and a _pyrites_, both evidently smoothed by usage.”[11] More recent explorers, apprised of the significance of such discoveries, have noted the presence of nodules of pyrites, accompanying the personal ornaments and weapons occurring in graves of the same age: deposited there either as tokens of regard, or more probably with a vague idea of their utility to the dead in the life beyond the grave. In a communication to the Society of Antiquaries of Scotland on a group of stone cists disclosed, in 1879, on the farm of Teinside, Teviotdale, Lord Rosehill thus describes part of the contents of one of them. “It was filled with dark-coloured earth, mixed with charcoal; and closely intermingled in every part with fragments of bones which had been exposed to the action of fire.” A broken urn lay about ten inches from the top. “Close to the urn was a rounded piece of metallic-looking substance, which appears to be ‘radiated iron pyrites,’ and which,” adds Lord Rosehill, “I have myself discovered in several interments.”[12] More recently, in 1883, Major Colin Mackenzie reported to the same Society the discovery of a cist and urn in the Black Isle, Ross-shire.[13] He thus proceeds: “Whilst gathering together the broken pieces of the urn, a round-nosed flint-flake or scraper, chipped at the edges, was found amongst the debris, and proved to have a bluish tinge, as if it had been subjected to the action of fire.