THE PROBOSCIS, OE ELEPHANTS. 235 



which we started. A comparison of Figs. 40, 41, 

 42 will make the homology of the spaces a a' t b b' t 

 c c' perfectly clear. 



Europe, before the appearance of the Glacia 



Fia. 42. Piece of a Molar of the Mammoth, cut longitudinally, 



Nat. size. 

 e, Enamel ; d, dentine ; c, cement. 



period, possessed several elephants, and Britain, 

 which at that time had not yet been rent asunder 

 from the continent, possessed the Elephas antiquus, 

 and Italy the Elephas meridionaUs. The Mammoth 



