489 



2783. The moiety of a vertically bisected upper molar of a Mammoth (or extinct 

 species of Elephant), Elephas primigenius. 



The constituent plates, of which thirteen are preserved in a longitudinal extent of five 

 inches three lines, are relatively deeper, as well as more numerous, than in the Asiatic or any 

 other existing species of Elephant, and indicate a provision for the grinding down of coarser 

 vegetable food, which accords with the higher latitudes in which the Mammoth existed. 



Hunterian. 



2784. A horizontal section, including seven plates and the common dentinal base of 

 some anterior ones. 



It is polished, and shows well the three substances of which the Elephant's grinder con- 

 sists, the dentine being inclosed by the wavy lines of enamel, and the whole surrounded by a 

 thick crust of cement. 



Hunterian. 



2785. A polished section of a molar, in the form of a knife-handle, illustrative of the 

 economical application of the beautiful interblended constituents of this com- 

 plex tooth. Hunterian. 



2786. The basal moiety of a horizontally bisected molar tooth. 



It has consisted of upwards of ten plates, the anterior ones having become blended together, 

 and the whole united by the cement. Several fangs are developed from this molar, the an- 

 terior ones being the longest and most pointed : the parallel crenate borders of the cut surface 

 of the plates characteristic of the Elephas asiaticus are well shown in this section. 



Hunterian. 



2787. A portion of a horizontally bisected upper molar. 



It includes the summits of six constituent plates, the three anterior of which have come 

 into use ; the rest are covered by a thick crust of cement, which appears to have a denser 

 layer along the inner border. 



Hunterian. 



2788. The basal portion of a horizontally bisected lower molar, including six plates 

 and the confluent bases of others which were supported by a long fang. 



Hunterian. 



2789. The basal portion of a lower molar tooth from which several fangs have been 

 developed ; the interspaces between the ununited parts of the plates are very 

 narrow. Hunterian. 



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