108 EXPLORATION OF BURTON MOUND [ETH. ANN, 44 
Entire bone awl. Obverse outside. Made of light and porous bone. Extreme 
tip broken off. 42 mm. long, 14 mm. wide, 11 mm. thick. The butt fracture 
extends almost half way up the obverse side. 
Entire bone awl. Obverse outside. 72.5 mm. long, 10.5 mm. wide, 5 mm. 
thick. The butt is an old break but is undoubtedly the original condition. The 
edges taper from about 45 mm. more sharply from about 12 mm. The extreme 
tip is broken off. The reverse side in the vicinity of the butt end is spongy. 
SEA-LION RIB IMPLEMENTS 
Of similar implements Heye says:'® “ Still other curved bone imple- 
ments are exhibited in Pl. L, all made from the ribs of deer or sea- 
lion. The butt end has been left in its natural state, while the other 
end, in the examples shown in a and d, is ground to a point. The 
smaller ends of } and c, although blunt, likewise show evidence of 
working. These latter two objects would have made ideal tools for 
chipping stone, the natural curve of the rib fitting the hand in such 
a way as to afford a firm grip.” 
Tip fragment of sea-lion rib implement, mellowed color, quite brown. 35.5 
mm. long, 11.5 mm. wide, 5 mm. thick. The end is beveled to the flat side of 
the rib from about 10 mm. from the tip. The extreme tip is broken off, as 
if it had not been cut wholly through at the time of making. 
Tip fragment of sea-lion rib implement, 23 mm. long, 8 mm. wide, 8 mm. 
thick. The tip is beveled to the flat side from 5 mm. back from the tip. The 
beveled surface shows an outcropping of the spongy interior of the bone near 
the extremity. The specimen may have been through fire. (PI. 19, b, 1.) 
Entire sea-lion rib implement, showing the original form. 98 mm. long, 
10 mm. wide, 6 mm. thick. The beveling to the flat side starts 10 mm. from 
the extremity. This beveling discloses no hole or sponginess. The butt is 
unbroken, but is concave and rough surfaced, being the natural articulation of 
the rib. The specimen is flesh colored, lighter than that of most of these rib 
implements. (Pl. 19, b, 2.) 
Tip fragment of sea-lion rib implement, 37 mm. long, 11 mm. wide, 10 mm. 
thick. The beveling to the flat side starts 9 mm. from the tip. The rib is 
solide) (PlLet980; 35) 
Tip fragment of sea-lion rib implement, 39 mm. long, 12 mm. wide, 10 mm. 
thick. The beveling to the flat side tapers from only 7 mm. from the extremity. 
The beveling exposes sponginess of the interior of the rib. The obverse sur- 
face has a transverse notch 138 mm. below the tip. (Pl. 19, b, 4.) 
Tip fragment of sea-lion rib implement, 28 mm. long, 12 mm. wide, 7 mm. 
thick. Beveled to the flat side from 7 mm. from the tip. (Pl. 19, }, 5.) 
Tip fragment of sea-lion rib implement, 48 mm. long, 11 mm. wide, 6.75 mm. 
thick. The beveling to the flat side starts 8 mm. from the tip. (Pl. 19, b, 6.) 
Tip fragment of sea-lion rib implement, 38.5 mm, long, 18 mm. wide, 9 mm. 
thick. The point is beveled off to the flat side from 8 mm. back from the tip. 
(Pl. 19, 6, 7.) 
Tip fragment of sea-lion rib implement, but possibly representing the origi- 
nal condition of the specimen, although the butt end is broken off. 91.5 mm. 
long, 10 mm. wide, 7 mm. thick. This specimen is more curved than the others. 
12 Heye, op. cit., pp. 81-82. 
