56 
edge greatly bevelled from one side, hardly any from the other, and is 
flattened on the very edge. The other side edge, though not bevelled 
from the sides, is rubbed flat at a slight angle, and the angles or corners 
of this flat surface are sharp. There is an offset near the middle of this 
edge. One end of the specimen also is rubbed flat. 
Of the four objects having a step-like offset near the middle of one 
edge, two have a single offset and the others two. Those with a single 
offset consist of a whetstone made of an argillite pebble, found in heap A, 
and a plough grinder from heap D. The specimens with two offsets are 
the whetstone from heap A, described above and illustrated on Plate XV, 
figure 3, and the whetstone from heap M. The offsets on the specimen 
in figure 3 are about £ inch apart and those on the other specimen, which 
are slightly oblique, are about f inch apart, one of them being lower than 
the other and deeper at one end than at the other. The offset on the 
plough grinder is about ^ inch high and crosses the edge at a slight angle. 
The corners or angles of the offsets are all more or less sharp; those on the 
specimen in figure 3 appear to be slightly undercut. The offsets appear 
to have been produced by grinding the edge of the objects lengthwise 
rather than crosswise. Their purpose is unknown. 
Wedges. Ten wedges were found on the harbour, nine in heap A and 
one in heap D. Of these, two wide, thin wedges were each made from 
slivers of whale ribs, one of them being the wedge found in heap D. Seven 
were made of antler and one of bone. Those made of whale ribs and two 
of antler are large. Two broken antler wedges are of medium size. Two 
other broken specimens of antler were apparently small and one whole 
specimen is small, as is also the one of bone. 
Of the two wide, thin wedges, each made of a sliver of a whale rib, 
the first (Plate XVI, figure 1) is sharpened on both edges, but only near 
the lower end which decreases in width towards the wedge edge. The 
edges at the sides are somewhat smoothed. The top is battered and 
slivered, apparently from use. The slivered surface is not smoothed 
as if the wedge had been much used, but the side illustrated is smooth. 
The similar wedge found in heap D was also apparently made of a large 
sliver of a whale rib, and is slightly cut on the broken surface and on the 
edges to bring it to wedge shape. It was also battered on the top. 
Two large wedges were made of round prongs of antler, apparently 
of the moose. The first (figure 2) is smooth on the larger end, having 
apparently been neatly trimmed. The other end is broken off at the tip, 
leaving the specimen about 8 inches long, but shows that it was cut off 
at a bevel tangent to the concave side of the antler, which, if continued 
in the same direction on the missing part, would make the entire wedge 
about 9 inches long. Cutting off this side of the antler would make the 
wedge as straight as possible; cutting off either edge would leave it with 
its natural curve; and cutting off the convex side would tend to make it 
as curved as possible. The other specimen differs only in a few particulars. 
It was cut around the larger end and broken off. The small jagged pro- 
jections are not crushed by blows such as must have been delivered had 
the wedge been driven. The other end is broken off at the tip, leaving 
