49 
battered, except near the cutting edge, somewhat irregularly, but each 
tends to present two longitudinal facets. A hollow in the upper facet 
on the left side edge has a corresponding one in the lower facet of that 
edge at a higher point. Both of these hollows tend to run parallel and 
diagonally across the side edge. A fragment, apparently of a celt, from 
heap D, shows part of a side edge which is slightly indented, and this 
depression bears a series of smooth transverse grooves, running somewhat 
obliquely. In this respect this celt is like that from heap A, described 
on page 48 (Plate XIV, figure 8). A small specimen (Plate XIII, figure 3) 
is notched on the side edges and slightly grooved on the sides. The head 
being thick and wide rather than tapering, such grooving would be sufficient 
to facilitate hafting. It may be compared with three notched hammers 
described on page 53 (Plate XIV, figure 9). A daub of red on one side of 
this notched adze may be due to iron rust. The small celt (Plate XII, 
figure 2) is made of a symmetrical pebble sharpened by rubbing, and is 
chipped and rubbed on the side edges. 
The celt found on the surface of heap E was chipped to form from 
hard grey stone. The head is nearly straight across and is narrower 
than the bit, which, except at the very cutting edge, is wider than the 
middle part of the celt. The celt found in the refuse of the prehistoric 
cemetery is in two fragments, and was made of a fragment of stone trape- 
zoidal in cross-section, by sharpening one end to a symmetrical form, 
smoothing the wider side, and rounding the corners slightly. It has much 
of its surface seemingly unworked and is one of the few neatly formed 
celts found on the harbour. 
Some celts were apparently broken in the process of making. One 
such specimen, found on the surface of heap D, is a long fragment of hard 
grey stone with nearly the entire surface chipped to form, and the side 
edges battered. Another fragment, of similar material, from the same 
place, similarly chipped and battered, bears some peck marks and is prob- 
ably a celt broken in the making. A large pebble found in heap A is pecked 
over most of its surface, apparently to produce a celt; a broken corner, 
amounting to about an eighth of the object, possibly caused its rejection. 
It has since been weathered so that minute ridges of hard rock are left 
standing above the general surface. 
The celt on Plate XII, figure 6, is one of two that are much alike, 
found in heap L. It is simply a smooth pebble of suitable form with one 
end sharpened to a keen edge by rubbing. It is the only celt having 
a symmetrical edge that was obtained on the harbour. The pebble, how- 
ever, is slightly asymmetrical, but edgewise rather than sidewise like 
the cutting edges of the other specimens. 
A pebble of soft sandstone If inches long, from heap D, is ground 
off like an adze on the more convex side of one end. The edge is chipped 
off on both sides. It is too light, too small, and has too asymmetrical a 
cutting edge for use as a hatchet, and is too light and too small for use as 
an adze. It was possibly hafted and used as a chisel, though the material 
seems too soft for a serviceable chisel, as is partly shown by the chipped 
edge. It may have been a toy. 
Besides the celt with the notched side edges and slight groove, men- 
tioned on page 49 and illustrated on Plate XIII, figure 3, the two objects 
described on page 53 as notched hammers may be fragments of notched 
