No. 6. DEPARTMENT OF AGRICULTURE. 



Average Composition and Guaranty Compared — Continued. 



543 



Fall, 1905. 

 Phosphoric add: 



Total. 10. 63 



Available 8.72 



Potash 2.90 



Nitrogen 1.26 



Spring, 1906. 

 Phosphoric acid: 



Total 9.73 



Available 7. 



Potash 4.21 



Nitrogen, 1.57 



Pall, 1906. 

 Phosphoric acid: 



Total 10.45 



Available 8.23 



Potash, S.12 



Nitrogen 1.32 



Spring, 1907. 

 Phosphoric acid: 



Total ' 9.21 



Available 8.13 



Potash 4.55 



Nitrogen 1.52 



9.62 

 g.l3 

 2.42 

 1.20 



9.21 

 7.77 

 3.95 

 1.53 



9.70 

 8.16 

 2.95 

 1.31 



S.SO 

 7.83 

 4.31 

 1.47 



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

 wholesale prices of raw materials in the principal markets during the most im- 

 portant buying season and upon certain average allowances for expenses and 

 profits on the part of the mixer and jobber, coincide with the retail prices later 

 ascertained. A comparison for several seasons past is given below: 



Comparison of Selling Price and Valuation, 1908-1907. 



Complete fertilizers: 



1902, Spring 



Fall, 



1903, Spring 



Fall 



1904, Spring 



Fall 



1905, Spring 



Fall 



1906, Spring 



Fall 



1907, Spring 



Dissolved bone: 



1902, Spring, 

 Fall, ... 



1903, Spring, 

 Fall, . . 



1904, Spring, 

 Fall, .. 





V 



m 



24.10 

 21.83 

 24.57 

 21.98 

 24.28 



21. sa 



24.63 

 21.39 

 23.55 

 21. S7 

 24.60 



16.50 

 25.30 

 31.17 

 23.67 

 31.50 

 24.94 



25.33 

 23.31 

 24.15 

 22.77 

 24.99 

 22.53 

 25.60 

 22.35 

 24.76 

 22.99 

 26.84 



17.35 

 27.08 

 30.87 

 24.57 

 28.42 

 27.77 



1.25 



1.48 



— .42 



.79 



.71 



.71 



.97 



.96 



1.21 



1.12 



2.24 



.85 



1.78 



—.30 



.90 



-3.08 



2.83 



