25 
and forty-three others are made of mammal bones, sixteen of them appar- 
ently being derived from radii, two from ulnae, two from fibulae, five from 
tibiae, and one from part of a lower jaw. They range in length from I ff 
inches to 6^ inches, the most usual lengths being from 2| to 3y% inches. 
The diameter varies from T 3 jj to f inch. The marrow cavity in all specimens 
was exposed in producing the pointed tip. The cross-section of the different 
specimens varies, of course, with the particular bone from which the point 
is derived ; those from humeri, ulnae, and radii being somewhat oval, whereas 
those from tibiae — with their three borders — and fibulae, are more or less 
triangular. Seventeen specimens are crude, thirty-four have the base cut 
off more or less squarely; and two are cut off obliquely. Six have the base 
indented, producing two barbs, and two others have three barbs. Seven 
specimens have the marrow hollow at the butt end artificially enlarged 
for the reception of the arrow-shaft. 
One point (Cat. No. VIII-F-10212) is made from that part of the 
lower jaw of the deer lying between the incisor and molar teeth, known as 
the diestema. The butt is cut crudely and more or less squarely across, 
retaining part of one of the alveolee, and the tip shows signs of whittling, 
which suggests that this point is unfinished. 
One of the more slender points of this type found here (Cat. No. 
VIII-F-12196) , which appears to have been made from the tibia of a small 
mammal, has the marrow hollow at the base enlarged for the reception of 
the arrow-shaft. Another point (Cat. No. VIII-F-11225) , made of a 
section of the triangular shaft of the fibula of a bear, has the socket hole 
similarly artificially enlarged to a depth of about \ inch. 
Four specimens, one of which is seen in Plate I, figure 14, are made 
from the upper portion of dog tibiee. One (Cat. No. VIII-F-12968) , derived 
from a right tibia, has the base cut off obliquely and the other end brought 
to a point. The one in figure 14 is made from a left tibia and has the three 
sides of the base indented, producing distinct barbs. The natural angles of 
the bone have been considerably accentuated by grinding, making the cross- 
section, as seen from the base, distinctly triangular. A broken specimen 
(Cat. No. VIII-F - 1 0812) , probably an unfinished point, derived from the 
middle part of the shaft, has three blunt barbs formed by deep V-shaped 
notches in the base. Another specimen, with the base unfinished, is derived 
from the upper portion of a left tibia and is one of the heaviest specimens 
of the kind found here. 
A point with a deep, indented base (Cat. No. VIII-F-10347) , seems to 
be derived from the radius of a dog, and another (Cat. No. VIII-F-11229) 
is derived from the right ulna of that mammal. The articular end of the 
latter specimen was cut off at the lesser sigmoid cavity, the distal end w r as 
ground to a point; and it was barbed by indenting the base. A similar 
point, made from the same kind of bone, has most of the distinguishing 
features of the natural bone obliterated. Both points retain the natural 
twist of the ulna, which perhaps gave the arrow a revolving motion. It 
is difficult to determine the kind of bone from which the largest point (Cat. 
No. VUI-F-13185) is derived, but judging from its slenderness and length 
it seems to be part of a fibula. The base is cut off at a slight slant. 
Similar points made from hollow bones have been found at other sites 
of the same culture in the St. Lawrence valley. Skinner describes and 
