different Species of Asiatic Elephants. 235 
The dark parts represent the divisions between each tooth : 
the white is the enamel ; and the penniform or striated parts 
represent the centre of each tooth. The grinding surface ap- 
pears serrated, the enamel being highest: the centre or body of 
the teeth next; and the bony divisions between each appear 
rather the lowest. The seven teeth farthest back have their 
enamel complete, and a bony crust laid over them ; but, as they 
cut the gum, this is soon worn away, and the teeth themselves 
become gradually worn down by the mastication of the food. 
By tracing the centre of a tooth from its apex to the roots, 
the mode in which the teeth are joined to each other will appear 
evident. The centres of the teeth are not entirely filled up, till 
the fangs become nearly solid. 
From A to A are fifteen teeth, of which this grinder is made 
up. 
B. The anterior fang, become quite solid, except at the ex- 
tremity. 
C. The hollow that formerly existed between the three an- 
terior teeth and their fangs, completely ossified. 
DD. The ossification extending from the fangs to the bodies 
of the teeth, which, in time, would have filled up the interme- 
diate space between them. 
EE. The fangs of the grinder, considerably lengthened, and 
nearly solid, except at the posterior part. 
FFF. The bony crust covering the teeth, before they cut the 
gum. 
GG. The serrated surface of the grinder, produced by the 
mastication of the food ; the enamel and centre of the teeth be- 
ing higher than the intermediate bony substance. 
HHH. The bony matter, filling up the interstices between. 
