59 
Of the second group, one short specimen broken at the root end is sharp- 
ened and the rear edge of the entire piece is cut off (figure 11). It might be 
considered as a fourteenth of the first group previously mentioned. Two 
more, from heap A, one of which is shown in figure 12, are also broken 
at the root end and have the back or concave part of the tooth cut away, 
opening the inner canal of the tooth the full length of the specimens. One 
from heap D, cut off 1J inches from the edge, similarly lacks the back part 
of the tooth. Another from the same heap is broken at about the same 
distance. The rear half of the tooth is broken away and one edge of this 
broken surface, except near the cutting edge, is sharpened. Some such 
knives found in Kentucky 1 have part of the inner surface grooved out 
longitudinally or cut off flat. 
Of the third group, four from heap A have both the root and edge 
cut squarely across. A short one is shown in figure 13. Another short 
one from heap A (figure 14) has the edge cut squarely across, and the front 
and side of the broken root end ground to a rounded surface. Still another 
short one from heap A is broken off at the root end. A longitudinal frag- 
ment from heap D is possibly of this style, as the cutting edge is cut off. 
This makes six, possibly seven, of this style. The square tips of all these 
were probably ground off on a whetstone. 
Of the fourth group, three found in heap A, one of which is illustrated 
in figure 15, and one found in heap M, are broken off, worn smooth on the 
broken tips at one end, and sharpened by grinding down the outer side of 
the tooth at a slant at the other end, so that it would form an excellent 
knife edge. A point broken from a specimen found in heap D is apparently 
of the same kind. Another from the same heap has both ends broken off. 
A third of this style from that heap is cut off at the root end with the 
cutting edge formed by rubbing the sloping outer side of the tooth at the 
natural cutting end. Still another, broken at both ends, is sharpened at the 
cutting edge, so that the missing part of the point must have been thicker 
than the thinnest part of the present object; another specimen (figure 16) 
is bevelled diagonally across the whole root end, showing the open canal of 
the interior of the tooth, so that this end resembles the cutting edge of a 
natural incisor of a beaver. The cutting edge is broken off, but shows a 
bevelled surface on one side of the tooth, which suggests that this specimen 
is of the same style as those here mentioned. A long specimen (figure 17) 
is broken off at the root end and ground off on the outer side into two 
scallops, one covering about half the specimen and about as high at one 
end as at the other, the other on the lower half of the tooth where the side 
tapers to form a sharp point. Still another from this heap is a longitudinal 
section lacking both ends and the inner edge, but it is rubbed along the 
front or convex face of the tooth, forming a slightly scalloped sharp edge. 
Another (figure 18), broken at one end, has the wall of the flattened inner 
side of the tooth removed, and is ground to a triangular point across the 
broken edges at the other end. A similar specimen was found in heap L. 
The inner canal of the tooth is opened the entire length of the specimen. 
A specimen of the same kind sharpened at both ends was found in heap K, 
and a fragment of the cutting edge of one found in heap M was sharpened 
1 Cf. Smith, p. 198. 
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