THE AN7MAL 





only like a thickened skin, as seen in the Spider and in 

 insects ; and if, by the aid of your microscope, you 

 examine the leg of the smallest insect, you will find it 



jointed together in precisely the same manner as that of 

 the crab. 



Again, when you look at the sketch of the Snail (Fig. 3), 

 you will at once be reminded that all these animals are soft- 

 bodied, and that therefore, though different in form, they 

 are all classed under the name of Mollusks. You must 



B 2 



