OF THE CLASS MAMMALIA. 



259 



nantia, have the extremity of the finger and toe entirely 

 enclosed in a hoof; they are thus called ungulata. 



412. The order bimana includes only man : in him alone 

 the arms are destined for prehension, the limbs for progression 

 and support in the erect attitude. Thus, the natural position 

 on the soil is unmistakeably vertical. The teeth are of three 

 kinds ( 52), and have their edges on the same plane ; they 

 are frugivorous : finally, the brain is more perfect, more 

 highly developed, than in any other animal. 



Though man represents but a single species, yet in his 

 varieties he offers many remarkable differences, especially as 

 to colour, features, and proportions ; of these varieties, the 

 more remarkable are the white or Caucasian, the yellow or 

 Mongolian, the black or Ethiopian. 



Fig. 219. Mongol Kace. 



The Caucasian variety of man occupies all Europe and 

 Western Asia as far as the Ganges, likewise Northern Africa. 

 To it belong the more highly civilized nations. The region of 

 the Caucasus has been supposed to have been the cradle of the 

 race, hence its name. A fair skin, elevated forehead, small 

 s 2 



