48 
The material of most of them is dark feldspathic rock, but a few from 
heap A and one from heap D are of mica schist. At least one from heap A 
and two from heap D are of slate, and one from heap D is of sandstone. 
The last is apparently too soft for use. All are apparently made from 
pebbles, nearly all slightly pecked before being rubbed, and all somewhat 
rubbed to shape. A few were roughly chipped before being pecked or 
rubbed. The polishing on none was over much of the surface. About 
25 per cent of those found in heap A and 13 per cent of those found in 
heap D seem unfinished, although some of these may have been used as 
they are, and none can be definitely determined as unfinished. 
Many of the heads show the unchanged natural surface of the stone 
in some cases nearly flat on the end, but in most of those from heap A 
and in six of those from heap D they have been purposely flattened by 
pecking, or accidentally by use. The heads do not seem to have been 
intentionally thinned to facilitate hafting, some being thicker there than 
at the middle of the shaft, though most are thinner and narrower. In 
about half of those found in heap D the heads are narrower than the 
cutting edge. The heads of at least three from heap A and four from 
heap D are battered and fractured as if they had been used as wedges, 
and several more are battered, probably by pecking done to bring them 
to form. The head of the celt illustrated on Plate XIII, figure 2, is much 
battered and fractured, apparently from long pounding with something 
or on something. 
Two specimens out of the forty-six complete adzes found in heap A 
were sharpened at both ends. One (Plate XIII, figure 4) is made of dark 
grey schistose slate and resembles a gorget, without perforations, sharpened 
at both ends. One of the twenty-three complete adzes from heap D is 
double-bitted. It is made of slate. One (figure 5) of hard grey stone 
is double-bitted and one of the edges is slightly curved like a gouge. 
Five from heap A and one from heap D were apparently used also as 
hammers until the edges were much battered; three from heap A and one 
found on the beach at heap D were blunted on the edges, perhaps only 
by rough usage; sixteen from heap D are chipped on the edges, perhaps 
by such use. It has been suggested that they were pounded on the edge 
to chip off pieces on either side to save some grinding in resharpening, 
but the pounding appears to have dulled rather than sharpened them. 
The edge of the specimen illustrated on Plate XIII, figure 2, is chipped 
off on the reverse and smoothed by later use. One of the celts (Plate XIV, 
figure 8), that has a battered edge as if it had been used as a hammer, 
bears a pit in the head end of each side, like the pits in a pitted hammer- 
stone; across nearly all of one side edge are smooth transverse grooves 
like those on what is thought to be a fragment of a celt, mentioned on 
page 49. One specimen, apparently the head end of a celt, found in heap A, 
is pecked and rubbed from a dark, hard, tough, crystalline rock. One 
end is battered and fractured from use in pounding. Red paint on a 
battered spot on each side suggests that it was used instead of a pestle 
to crush stone for paint. 
The side edges of a few from heap D are flattened. The largest 
specimen found in heap D (Plate XIII, figure 1) has its side edges shaped 
as if for hafting. The side edges of the celt on Plate XIII, figure 2, are 
