The celt engraved in Fig. 82 presents an abrupt shoulder on one side only, which, however, is in this case probably due to the form of the pebble from which it was made, a portion of which had split off along a line of natural cleavage. It is formed of a reddish, close-grained porphyritic rock, and is subquadrate in section at the butt. It was found at Mennithorpe, Yorkshire, and is in the Greenwell Collection. In the same collection is a thin celt of clay-slate, 4 3∕4 inches long, of much the same form, but rounded at the shoulder. It was found at Ryedale, in the North Riding of Yorkshire. Some of the shouldered implements may have been intended for use in the hand, without hafting. This appears to be the case with the greenstone celt shown in Fig. 83. It was found on Middleton Moor, Derbyshire, and was in the collection of the late Mr. J. F. Lucas. The shallow grooves at the sides seem intended to receive the fingers much in the same manner as the grooves in the handles of some of |137| the tools of the Eskimos or the handles of the bronze sickles of the Swiss Lake-dwellers.[438] An Irish celt, 8 inches long, and now in the Blackmore Museum, has two notches on one side only, and more distinctly formed, “seemingly to receive the fingers and give a firmer hold when used in the hand without a haft.” Another peculiar instrument adapted for being held in the hand is shown in Fig. 83A. It was found at Keystone, Huntingdonshire,[439] and is now in the British Museum. It is made of greenstone, and in form resembles the sharp end of a celt with flat sides let into a spherical handle. Some hand-hatchets from Australia are of much the same character, but in their case the knob is distinct from the blade, and formed of hard _xanthorrhæa_ gum. |138| [Illustration: Fig. 83.—Middleton Moor.] [Illustration: Fig. 83A.—Keystone. 1∕2] The original of Fig. 84 is in the Greenwell Collection, and was found near Truro. It is of serpentine, with an oblique edge, and seems to have been formed from a pebble with little labour beyond that of sharpening one end. Though much flatter on one face than the other, it would appear, from the slanting edge, to have been used as an axe and not as an adze, unless indeed it were a hand-tool. A beautiful adze formed of chalcedonic flint is shown in Fig. 84A. kindly lent by the Society of Antiquaries of Scotland. The original was found at Fernie Brae,[440] Slains, Aberdeenshire. It is 7 inches long, and of nearly triangular section. A somewhat similar adze of greenstone was found at Little Barras,[441] Drumlithie, Kincardineshire. I have a flint adze (5 inches) of much the same character, but not so flat and blunt at the butt-end, and ground at the edge only, which was found in Reach Fen, Cambs. It is shown in Fig. 35A at page 92. [Illustration: Fig. 84.—Near Truro.] [Illustration: Fig. 84A.—Slains (7 inches long).]