Axes of this character, usually formed of greenstone, are very common in Denmark and Northern Germany. They are much rarer in France, partly, no doubt, in consequence of the less abundance of suitable material. They also occur in Russia[736] and in Italy.[737] A small specimen of the same form but rather more square at the butt than Fig. 131, made of dark serpentine, and only 3 5∕8 inches long, was found at Tanagra, in Bœotia, and was formerly in the collection of Dr. G. Finlay,[738] of Athens. * * * * * Some of the forms last described, having square butt-ends, might, perhaps, with greater propriety, have been included in the fourth class into which I have proposed to divide these instruments, viz., axe-hammers, sharpened at one end and more or less hammer-like at the other, and with the shaft-hole usually about the centre. * * * * * One of the simplest, and at the same time the rarest varieties of this class, is where an implement of the form of an ordinary celt, like Fig. 69, has been bored through in the same direction as the edge. Fig. 133 represents such a specimen, in the collection of Messrs. Mortimer, of Driffield. It was found at Buckthorpe, Yorkshire, and is formed of close-grained greenstone. The butt-end is circular and flat, and the shaft-hole, which is oval, tapers considerably both ways. An axe-hammer of diorite, of nearly similar form, found at Groningen, in the Netherlands, is in the museum at Leyden. [Illustration: Fig. 134.—Aldro’. 1∕2] Another simple form is that exhibited in Fig. 134, taken from a specimen in greenstone found at Aldro’, near Malton, Yorkshire, and in the possession of Mr. Hartley, of Malton. Its principal interest consists in its having been left in the unfinished state, previous to its perforation. We thus learn that the same practice of working the axe-heads into shape before proceeding to bore the shaft-hole, |206| prevailed here as in Denmark. In that country numerous specimens have been found, finished in all respects except the boring, and in many instances this has been commenced though not completed. It would appear from this circumstance that the process of boring was one which required a considerable amount of time, but that it was most satisfactorily performed after the instrument had been brought into shape; the position of the hole being adjusted to the form of the implement, and not the latter to the hole. In the extensive Greenwell Collection is the cutting end of an axe which has been broken half-way across the hole, which, though commenced on both faces, was never finished. The conical, cup-shaped depressions produced by the boring instrument, extend to some depth in the stone, but are still 1∕4 inch from meeting. The fragment is 3 1∕8 inches long, and was found at Sprouston, near Kelso.