g2 6 Mr. Home’s Observations on the grinding Teeth 
remains of the sockets, from which the smaller grinders had 
fallen out. 
This mode of dentition is precisely similar to that of the 
elephant; and, in the structure of the tooth, it resembles 
that of the boar; we have therefore complete evidence of a 
tooth of this last structure acquiring the size of that of the 
elephant, and succeeding those which preceded it in the same 
manner. 
The animal incognitum, with respect to its teeth and the 
mode of their succession, being an intermediate step between 
the elephant and wild boar, both of which have tusks, gives a 
degree of probability to the opinion which has been very gene- 
rally adopted, of this animal also having tusks. 
Of this, however, there is at present no confirmation; nor is 
there sufficient ground for denying their existence ; the part of 
the upper jaw in which they ought to be situated not having 
been preserved entire, in any of the specimens that have come 
under my observation.* 
That tasks have been found, resembling those of the elephant, 
in the same places in which the fossil teeth were met with, proves 
nothing ; since fossil elephants’ grinders have been found in the 
same situation. 
The scull of the fossil skeleton found in South America, a 
description of which is given by Mr. Cuvier, Secretary to the 
National Institute at Paris, in size resembles that of the animal 
incognitum ; but, when it is particularly examined, it will be 
found that the animal is of a very different genus. The shape 
* From the appearance of the lower jaw in the British Museum, there is sufficient 
evidence to ascertain that there is no tusk in the lower jaw. 
