Celts which have been merely chipped into form, and left unground, even at the edge, are of frequent occurrence in England, especially in those counties where flint is abundant. They are not, however, nearly so common in collections of antiquities as those which have been ground either wholly or in part; and this, no doubt, arises from the fact that many of them are so rudely chipped out, that it requires a practised eye to recognize them, when associated, as they usually are, with numerous other flints of natural and accidental forms. No doubt many of these chipped celts, especially where, from the numbers discovered, there appears to have been a manufactory on the spot, were intended to be eventually ground; but there are some which are roughly chipped, and which may possibly have been used as agricultural implements without further preparation; and others, the edges of which are so minutely and symmetrically chipped, that they appear to be adapted for use as hatchets or cutting-tools without requiring to be farther sharpened by grinding. There are others again, as already mentioned at page 32, the edges of which have been produced by the intersection of two facets only, and are yet so symmetrical and sharp, that whetting their edge on a grindstone would be superfluous. * * * * * Of this character I possess several specimens from Suffolk, of which one from Mildenhall is engraved in Fig. 12. As will be observed, the edge is nearly semicircular, but it is nevertheless formed merely by the intersection of two facets, each resulting from a single chip or flake of flint having been removed. I have in my collection another hatchet from the same place, which is so curiously similar to this in all respects, that it was probably made by the same hand. I am not, however, aware whether the two were found together.