There is in these implements a peculiar curvature on one face, as shown in the side view, which, I think, must be connected with the method by which they were attached to their handles. From the form, |68| it seems probable that they were mounted as adzes, with the edge transversely to the line of the handle, and not as axes. I have a more roughly-chipped specimen of the same type, found near Wanlud’s Bank, Luton, Beds, by Mr. W. Whitaker, F.R.S., in which the same curvature of one of the faces is observable. It is not so conspicuous in a larger implement of the same class, also from Mildenhall (Fig. 13), but this likewise is slightly curved longitudinally. In the Christy Collection is another, found at Burwell, Cambridgeshire, of the same type. It is rounded at the butt, but nearly square at the cutting edge, which is formed by the junction of two facets, from which flakes have been struck off. I have seen others of the same character from near the Bartlow Hills, Cambs, and from Sussex. Others, from 4 3∕4 to 6 inches in length, from Burwell, Wicken, and Bottisham Fens, are preserved in the museum of the Cambridge Antiquarian Society, and in my own collection. In the Greenwell collection is a specimen 7 3∕4 inches long, from Burnt Fen. I have also a French implement of this kind from the neighbourhood of Abbeville. [Illustration: Fig. 12.—Near Mildenhall. 1∕2] [Illustration: Fig. 13.—Near Mildenhall. 1∕2] Implements with this peculiar edge, are found in Denmark. Indeed, the edges of the common form of Kjökken-mödding axes[266] are usually produced in the same manner, by the intersection of two facets, each formed by a single blow, though the resulting edge is generally almost straight. Closely approaching this Danish form, is that of a celt of brown |69| flint, shown in Fig. 14, and found near Thetford by the late Mr. J. W. Flower, F.G.S., with one face nearly flat, and the edge formed by a single transverse facet. The implements, however, of this type, with the chisel edge, are rarely met with in this country; and, generally speaking, axes similar to those which occur in such numbers in the Danish Kjökken-möddings and Coast-finds are of very rare occurrence elsewhere. I have, however, a small nearly-triangular hatchet of the Danish type, and with the sides bruised in the same manner (probably with a view of preventing their cutting the ligaments by which the instruments were attached to their handles, or, possibly, to prevent their cutting the hand when held), which I found in the circular encampment known as Maiden Bower, near Dunstable. [Illustration: Fig. 14.—Near Thetford. 1∕2]