22 



THE ANIMAL KINGDOM, 



It is necessary to remind you that in order to render 

 the pictures of the different animals as plain to you as 

 possible, they have each been drawn as large as circum- 

 stances allow ; but, in consequence of this, it is impossible 

 to draw them so that they may represent the relative size 

 of one to the other. But your own sense and observation 

 will guide you in this respect, and in most cases the size 

 of the animal will be mentioned in the text. 



VERTEBRATE ANIMALS 



ARE DIVIDED INTO 



Mammalia 



Birds 



Reptiles 



Amphibia 



Fishes 



Leading Characteristics. 



The young are born alive, and suck milk. 

 They breathe by means of lungs, and 

 have hot blood. 



The young arc produced from eggs/ The 

 front limbs take the form of wings. 

 They breathe by means of lungs, and 

 have hot blood. The body covered with 

 feathers. 



The young produced from eggs. Some 

 hv.ve four limbs, others have not any. 

 They breathe by lungs or gills, and 

 have cold blood. The body for the 

 most part covered with scales. 



/ They are furnished with the lungs of land 

 animals and the gills of fishes, so that 

 ( they can live on land or in water. 



The young arc produced from eggs. 

 ( They are entirely without limbs. They 

 , breathe by means of gills. The body 

 is covered with scales or bony plates. 



