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living species of elephants, but also from every fossil tooth of which I 
have heard. Its peculiarities of character are, the great thickness of 
the plates, the smoothness of the sides of the line of enamel, and the 
appearance of the digitated part of the plates, even in the anterior 
part of the tooth. 
The length of this tooth, which is formed of thirteen plates, is eight 
inches ; and the length of its triturating surface, on which are the 
terminations of nine plates, is six inches. The width of these plates 
may therefore be taken at nearly double that of the plates of fossil 
teeth in general ; since, in a fossil tooth from Wellsbourn, in War- 
wickshire, twenty plates exist in the length of six inches and a half ; 
and, in a tooth from Essex, in a length of eight inches and a half, are 
contained twenty-four plates. 
The uncommon smoothness of the sides of the enamel in this fossil 
teeth, not only appears on its horizontal section, but, the cortical crust 
having been removed, by decomposition, from between the plates, the 
great degree of smoothness of their sides is rendered evident. 
On almost every triturating surface of the fossil teeth of elephants, 
except, indeed, when a tooth is first brought into action, full three- 
fourths of that surface, anteriorly, will be found to be supplied 
with the plates rubbed down into single bands, passing quite 
across the tooth ; whilst the remaining one-fourth of the surface is 
filled with detached rings or points, formed by the digitated processes 
of the plates. But in this tooth the reverse of this is to be seen. 
Onlv two entire bands exist, possessing, on the anterior part, about 
one-fourth of the surface : the remaining three-fourths being occupied 
by the terminations of the digitated processes. 
Taking all these circumstances into consideration, I think there is 
every reason for considering this tooth rather as belonging to a different 
species from any which has been hitherto noticed, than to regard it as 
an anomalous formation of a tooth belonging to the known fossil species. 
This opinion is founded on four important characters ; the great width 
