different Species of Asiatic Elephants. 229 
The six anterior laminse have the roots partly added; but 
the eight posterior ones are entirely without any appearance of 
roots. 
Immediately above this grinder, the incipient alveolus of a 
fifth succeeding grinder begins to be formed. The canal be- 
tween this and the anterior alveolus, appears at the upper part 
of the bony partition which divides the alveoli. 
The external plate of the upper jaw bone and part of the 
alveolus are removed, to show these grinders in situ. 
The apex or upper part of the bony case, in which the 
grinders are lodged, appears distinct, and unconnected with 
the bones of the jaw. 
AAAA. The division of the bones of the upper jaw and the 
alveoli, to show the grinders in situ. 
BBB. The alveoli or sockets of the two grinders ; b, the in- 
cipient alveolus of a succeeding grinder. 
C. The communication between this and its anterior alveolus. 
DD. The partitions between the alveoli. 
EEEEE. The alveolar processes, which proceed from the 
alveolus, between the roots of the grinders. 
F. The smooth bony surface of the three anterior layers of 
the grinder, without enamel, which has been completely worn 
away. 
GGG. The enamel of the different teeth, surrounding their 
bony centres. 
HHH. The centres of the teeth of which a grinder is 
composed. 
III. The bony matter which joins the teeth to each other. 
KK. The denticuli or points of the tooth, before they are much 
worn down; each point surrounded with its proper enamel. 
MDCCXCIX. H h 
