224 JELIANS* WART-HOG. 



to be placed into the same class as the back teeth 

 of the Elephant. It consists of three rows, placed 

 alongside of each other, at well connected tubes, 

 each about two inches long. At the outer side, 

 we count nine such tubes, eight at the inner, and 

 seven at the middle row, (this was the case in an 

 old individual, in some animals we found several 

 middle tubes double,) which tubes can be distin- 

 guished from each other at the anamel surface 

 by their oblong globules. Each of these tubes, 

 even the foremost or most recently formed, is 

 hollow in the lower two-third portions, or closed 

 up towards the enamel surface, and contains 

 the bulb, (bulbe, Fred. Cuvier,) destined for the 

 continual nourishment of the individual tubes, 

 which bulb was distinctly noticed by us, after 

 soaking the skulls. All the tubes of this tooth 

 are free towards the root-end, and contained in 

 one common large alveola, which is hollow at the 

 bottom, only the anterior tube excepted, which at 

 the lower end, and in an anterior direction, is 

 separate from the rest of the tooth ; whereby a gap 

 is formed between it and the second tube, which 

 gap is filled with a bony substance, a circumstance 

 peculiarly obvious in that of the lower jaw. This 

 fact would suggest a doubt, whether the posterior 

 back tooth would push forward towards the ante- 

 rior side ; although we did observe in younger 

 dividuals the after growth of the posterior tubes 



