New Yokk Agkicultural Experiment Station. 655 



Table II. — Selling Price and Commercial Valuation of Different 



Grades of Fertilizers. 



Low- 

 grade. 



Medium- 

 grade. 



Medium 

 high- 

 grade. 



High- 

 grade. 



Selling price of one ton 



Lowest 



Highest 



Average 



Commercial valuation of one ton 



Lowest 



Highest 



Average 



Differences between selling price and 

 commercial valuation 



Lowest 



Highest 



Average 



$17.60 

 30.00 

 22.98 



10.57 

 15.97 

 13 74 



2.03 



16.24 



9 24 



$19.00 

 45.00 

 25.97 



16.00 

 19.98 

 17 52 



0.00 



23.00 



8.45 



$23.50 

 55.00 

 30.40 



20.04 

 24.90 

 22.10 



0.10 



27.42 



8.30 



$21.00 

 52.00 

 34.77 



23.30 

 52.19 

 28.15 



*4.79 



18.65 



6.62 



* Commercial valuation exceeds selling price. 



An examination of the figures contained in this table suggests 

 several points of interest, among which we will call attention to the 

 following: 



(1) We notice that the selling price for any one grade of fertilizers 

 varies greatly. In addition it can be shown that the extremely high 

 prices in each grade have little relation to the actual composition and 

 plant-food value of the fertilizers. This can be shown by the follow- 

 ing tabulated data, giving the selling price and commercial valuation 

 for those particular samples which sold at the highest and lowest 

 prices in each grade. 



