COMPOSITION OF PLANTS AND ANIMALS 



261 



The following arrangement will show how the parts* of 

 the plant are related to one another: 



All feeding stuffs consist of 



Water 



and 



Dry flatter 

 I 



Ash, or 

 Inorganic Matter 



Organic Mattee 



Protein 



Carbohydrates 



Fat, or 

 Ether Extract. 



Nitrogen-Free 

 Extract 



Fiber 



The material of which the animal is made is very similar 

 to that used in building plant tissue. To begin with, the 

 body of the animal is made up of water and dry matter. If 

 we remove the water, dry matter is left. If this is burned 

 entirely so that even the charcoal is destroyed, the organic 

 part disappears and only ash is left. The organic matter, 

 while made of chemical substances similar to those found in 

 plants, consists mostly of protein and fat, with but little of 

 the carbohydrates. The composition of the animal body may 

 well be studied a little more in detail. 



Water in the animal body is found in the blood, and in the 

 fleshy and bony parts. The amount of water in the animal 

 depends upon age and condition. Young animals have 

 rather watery bodies. The older an animal becomes, or the 



