ELEPHANTS, RECENT AND EXTINCT. 



teeth ; these two species being respeciively confined to 

 Africa, and to India and the adjacent regions. These two 

 kinds of elephants are, however, merely the last survivors 

 of a vast host of extinct forms, some of which were closely 

 related to their living cousins ; while others differed so 

 markedly in the structure of their teeth as to have 

 received the distinctive appellation of mastodons, although 





