with a parallel shaft-hole 5∕8 inch in diameter, was found near Blair-Drummond, and is now in the National Museum at Edinburgh. It has a thin rounded edge at one end, and is obtuse at the other, as if it had been broken and subsequently rounded over. The form occasionally occurs in the South of England. In the British Museum is a beautiful specimen (4 1∕4 inches) from Twickenham, and another of more ordinary stone from the Thames, which was formerly in the Roots Collection. Another polished hammer (of grey granite) with curved sides, and narrower at one end than the other, was found in a cairn in Caithness,[782] in company with a flint flake ground at the edge, some arrow-heads, and scrapers. By permission of the Society of Antiquaries of Scotland, it is shown in Fig. 148. A somewhat similar form of hammer has been obtained in Denmark.[783] [Illustration: Fig. 148.—Caithness. 1∕2] [Illustration: Fig. 149.—Leeds. 1∕2] The hammer-head shown in Fig. 149 resembles the Shetland implements in character, though, besides being far less highly finished, it is shorter and broader, and shows more wear at the end. The hole, also, is not parallel, but tapers from both faces. It is stated to have been found 12 feet deep in gravel, while sinking for foundations for the works of the North-Eastern Railway in Neville Street, Leeds. It is formed of greenstone, and has all the appearance of having been made out of a portion of a celt. I have a somewhat smaller hammer-head, of much the same form, from Reach Fen, Cambridge, which also seems to have been made from a fragment of a broken celt. I have seen one of the same kind, found near Brixham, in Devonshire. I have another specimen, from Orwell, Wimpole, Cambs., in which a portion of an implement of larger size has also been utilized for |223| a fresh purpose. In this case the sharper end of a large axe-head of stone, probably much like Fig. 131, having been broken off, the wedge-shaped fragment, which is about 3 inches long and 2 inches broad, has been bored through in a direction at right angles to the edge, and probably to the original shaft-hole, and a somewhat adze-like hammer-head has been the result, what was formerly the edge of the axe being rounded and battered. Fragments of celts which, when the edge was lost, subsequently served as hammers, but without any perforation, have not unfrequently been found, both here and on the Continent. The Eskimo hammer, already mentioned, has much the same appearance and character as if it had been made from a portion of a jade celt.