Arrow-heads of the Stone Period are found in Scotland in great numbers, and of a considerable variety of forms. They are for the most part made of silex, though also met with of agate, cornelian, and other native pebbles, and are frequently finished with much neatness and care. The woodcut exhibits a very fine one, the full size of the original, which was found in the Isle of Skye, and is now in the collection of Mr. John Bell of Dungannon. Pennant has engraved a large cinerary urn, discovered along with three others, on opening a cairn on the hill of Down, near Banff. They contained, in addition to the incinerated remains, bone implements and flint arrow-heads, the largest of them having in it thirteen of the latter, all of the shape to which the term _barbed_ is most commonly applied. This, indeed, while it appears to be one of the most artificial forms, involving the greatest amount of labour and skill in fashioning the material, is also one of most frequent occurrence in Scotland. Those already referred to as found, along with an ancient wooden wheel, in the Blair-Drummond Moss, were of the same shape. So also were some obtained on opening a tumulus in the parish of Killearn, Stirlingshire, during the past year; and indeed they have been met with in nearly every district of the mainland, and of the northern and western isles. Lance- and spear-heads of silex are also not uncommon, both in the tumuli and among the objects turned up where the scenes of primitive population are subjected for the first time to the plough. A very fine spear-head of silex, fifteen inches long, and beautifully finished, was discovered a few years since on the demolition of a cairn on the estate of Craigengelt, near Stirling. Another of somewhat smaller dimensions, also found in a cairn, on the estate of John Guthrie, Esq., Forfarshire, about 1796, is figured and described in the Gentleman's Magazine of the following year.[156] [Illustration]