140 



Keport of the Chemist of the 



In the following tabulated statement we give the composition 

 of the different kinds of incomplete fertilizers included in our 

 year's collection. 



Average Composition of Incomplbte Fertilizers Collected. 



Comparison of Selling Price and Commercial Valuation. 



Giving to the different constituents the values assigned in the 

 schedule on page 36 for mixed fertilizers, 14 cents a pound for 

 nitrogen, 5^ cents a pound for water-soluble phosphoric acid, 5 

 cents a pound for citrate-soluble phosphoric acid, 2 cents a pound 

 for insoluble phosphoric acid, and 4^ cents a pound for potash, 

 we can calculate the commercial valuation, or the price at which 

 the separate unmixed materials contained in one ton of fertilizer 

 having the composition indicated in the preceding table, could be 

 purchased for cash at retail at the seaboard. Knowing the retail 

 prices at which these goods were offered for sale, we can also 

 readily estimate the difference between the actual selling price of 

 the mixed goods and the retail cash cost of the unmixed materi- 



