No. 7. DEPARTMENT OF AGRICULTURE, 693 



Average Composition and Guaranty Compared — Continued 



CI 



l-i 



9i 



s 



s ►^ 



Spring, 1910 

 Phosphoric acid: 



Total, 



Available, 



Potash 



Nitrogen, 



Fall, 1910 

 Phosphoric acid: 



Total, 



Available 



Potash... 



Nitrogen, 



8.80 

 7.62 

 4.08 

 1.60 



8.37 



7.47 

 3.09 

 1.22 



It is of interest to note how closely the series of valuations based 

 upon the wholesale price of raw materials in the principal markets 

 during the most important buying season and upon certain average 

 allowances for expenses and profits on the part of the mixer and 

 jobber, coincides with the retail prices later ascertained. A com- 

 parison for several seasons past is given below: 



Comparison of Selling Price and Valuation, 1903-1910 



Complete fertilizers 



1903, Spring, .. 

 Fall, 



1904, Spring, .. 

 Fall, 



1905, Spring, ... 

 Fall, 



1906, Spring, ... 

 Fall, 



1907, Spring, ... 

 Fall 



1908, Spring, ... 

 FaU 



1909, Spring, ... 

 FaU 



\910, Spring, ... 

 Fall 



24.57 

 21.98 

 24.28 

 21.83 

 24.63 

 21.39 

 23.55 

 21.87 

 24.60 

 22.71 

 25.69 

 22.34 

 24.88 

 22.07 

 26.28 

 21 .TO 



24.15 

 22.77 

 24.99 

 22.53 

 25.60 

 22.36 

 24.76 

 22.99 

 26.84 

 24.59 

 26.23 

 23.88 

 25.31 

 22.25 

 28.23 

 92.2i 



C3 Q, 



s 

 ol 



si 



—.42 



.79 



.71 



.71 



.97 



.98 



1.21 



1.12 



2.24 



1.88 



.54 



1.54 



.31 



.14 



1.43 



.48 



