MANURE. 153 



Gluten. Vegetable fibrin. Albumen. Casein. 

 Average of 3 trial,. fjgg* 



100- 100- 100- 100- 



Albumen and casein contain no phosphorus, but 

 both animal and vegetable principles, comprised un- 

 der the above names, are always combined with al- 

 kalies, lime, magnesia, iron, sulphur, and phosphoric 

 acid. The above are the organized principles of 

 living bodies, and are distinguished from all others 

 by their nitrogen. Substances not containing this 

 element are said to be organic, but not organized. 



218. The above substances, which form the great 

 bulk of animals and no small part of plants, deducting 

 their inorganic elements, compose protein, whose 

 constituents are — 



Carbon, 55-742 



Hydrogen, 6827 



Nitrogen, 16-143 



Oxygen, 21-288 



100- 



