I have a well-finished celt of hone-stone, rather thicker proportionally than that figured (5 5∕8 inches), probably found in Cumberland, it having formed part of the Crosthwaite Collection at Keswick. In the Greenwell Collection is another of basalt, with straight sides, tapering from 2 3∕4 inches at edge to 1 3∕4 at butt, 9 1∕2 in length, and 1 3∕4 thick, from a peat moss at Cowshill-in-Weardale, Durham. A thin, flat form of celt, still presenting the same character of section, is represented in Fig. 51. The original is formed of a hard, nearly black clay-slate, and was found at Oulston, in the North Riding of Yorkshire. Like many others which I have described, it is in the Greenwell Collection. [Illustration: Fig. 51.—Oulston. 1∕2] One of flint like Fig. 51 (5 inches) was found at Shelley,[347] Suffolk. A celt of greenstone (4 3∕4 inches), of the same character but thicker and with straighter sides, from Newton, Aberdeenshire, is in the National Museum at Edinburgh, where is also another, in outline more like the figure, but broader at the butt-end, and with one side somewhat flattened. It is 4 3∕8 long, and was found at Redhall, near Edinburgh. Some Irish celts, formed of different metamorphic rocks, present the same forms as those of Figs. 48 to 51. As a rule, however, the sides of Irish specimens are more rounded. Fig. 52 represents an exquisitely polished celt, of a mottled, pale |107| green colour, found in Burwell Fen, Cambridge, and, through the kindness of Mr. Marlborough Pryor, now in my own collection. The material appears to be a very hard diorite; and as both faces are highly polished all over, the labour bestowed in the manufacture of such an instrument must have been immense. It is somewhat curved lengthways, and on the inner face is a slight depression, as if, in chipping it out, one of the lines of fracture had run in too far; but even this depression is polished, and no trace of the original chipped surface remains. The point is quite sharp, and the sides are only in the slightest degree rounded. [Illustration: Fig. 52.—Burwell Fen. 1∕2] A beautiful example of the kind is said to have been found in a barrow near Stonehenge.[348] Another of a green-grey colour (6 1∕2 inches) was found at Lopham Ford, near the source of the Waveney, and was submitted to me in 1884, by the late Mr. T. E. Amyot, of Diss. The late Mr. J. W. Flower, F.G.S., bequeathed to me a somewhat larger specimen of the same character, found at Daviot, Inverness. It is slightly broken at the pointed butt, but must have been about 8 inches long and 3 5∕8 broad. The material may be a diorite, but perhaps more nearly approaches what the French term jadeite. In the Truro Museum is another highly polished celt of the same form, and similar material, found near Falmouth.