not produced in this country. Naturally the Food for 

 manufacturers will use as much as possible of the ans 

 materials produced by themselves, on which they 2 37 

 make both a raw material and a mixing profit, and 

 spend as little as possible for imported materials 

 on which they can make but one profit. 



Carrots. 



Pots manured with Phosphoric Acid, Potash and Nitrate of Soda. 



Nitrate 

 of Soda 



none 



3gr. 



gr- 



agricultural practice from 2 cwt. to 4 cwt. of Nitrate of Soda 

 per acre is applied in one or more dressings. 



The "complete" fertilizer manufacturers use 

 large quantities of low grade materials which the 

 farmers would not buy for .Home-Mixing because 

 of the doubtful value of the Nitrogen owing to its 

 not being available, that is, indigestible as plant 

 food. But the manufacturer finds them doubly 

 valuable as filler, because he can label his goods as 



