Food for 

 Plants 



276 



was 26 cents, which is less than the average paid 

 for Nitrogen in low-grade goods. The least amount 

 paid for one pound of Nitrogen in low-grade goods was 

 20 cents, in high-grade goods 13.3 cents. Similar 

 relations hold good in respect to the other elements of 

 plant-food. 



2. In general, the higher the grade of goods, the 

 lower the cost of each pound of plant-food. 



Tabulated General Summary. 



In the table following, we give a general summary 

 of the data that have been presented, showing the cost 

 of one pound of plant-food in different forms to con- 

 sumers : 



Cost of One Pound of Plant-Food to Consumers. 



