Mr. Combe’s Account , &c. 
1 68 
Explanation of the Figures. See Plate XIL 
The description of the drawings (which are upon a scale of 
half an inch to an inch,) supposes the natural situation of the 
tusk, with its apex pointing downwards. 
Fig. i . Shews the shape and size of the spear-head. 
Fig. 2. Position of the spear-head, in a transverse section 
of the tusk, with the relative magnitudes of both. 
Fig. 3. Cavity of the tusk below the spear-head, after it had 
been enlarged by the chissel. 
Fig. 4. Cavity, as it surrounds the spear-head, with its long 
diameter running in the direction of the short diameter of the 
tusk, a . A portion of more recently formed inferior bony 
matter. 
Fig. 5. Cavity of the tusk just above the spear-head. The 
.portion faintly shadowed represents the contraction of the cavity 
hy true ivory, a a. More recently formed inferior bony matter. 
Fig. 6 . The natural position of the long diameter of the ca- 
vity resumed, so as to run in the direction of the long diameter 
of the tusk, a a. More recently formed inferior bony matter. 
Fig. 3, 4, 5, and 6 , Represent the lower surfaces of the con- 
necting transverse sections of the tusk. Fig. 3, is farthest from 
.the basis ; and their respective lengths are, Fig. 3, 4, and 5, 
inches each ; Fig. 6 , 2 feet. 
