No. 7. 



DEPARTMiENT OF AGR-ICULTURE. 



677 



A comparison of the average composition of all samples of com- 

 plete fertilizers for which guaranties are recorded with the aver- 

 age of the corresponding guaranties, for several seasons past includ- 

 of this season follows: 



ing those 



Average Composition and Guaranty Compared. 



Phosphoric acid: 



Total, 



Available, ... 



Potash, 



Nitrogen, 



Spring, 19C2. 



Phosphoric acid: 



Total, 



Available, ... 



Potash 



Nitrogen, 



Fall, 1902. 



Phosphoric acid: 



Total 



Available, ... 



Potash 



Nitrogen 



Spring, 1903. 



Phosphoric acid: 



Total 



Available, ... 



Potash 



Nitrogen 



Fall. 1903. 



Phosphoric acid: 



Total 



Available, .. 



Potash 



Nitrogen 



Spring, 19C4. 



Phosphoric acid: 



Total 



Available, ... 



Potash 



Nitrogen 



Fall, 1904. 



Phosphoric acid: 



Total 



Available, . . 



Potash 



Nitrogen. 



Spring, 1905. 



Phosphoric acid: 



Total. 



Available, ... 



Potash 



Nitrogen 



Fall, 1905. 



Phosphoric acid: 



Total 



Available, .. 



Potash 



Nitrogen 



Spring, 1906. 



Phosphoric add: 



Total, 



Available, . . . 



Potash 



Nitrogen, 



Fall, 1906. 



