548 



ANNUAL REPORT OF THE 



Off. Doc. 



A comparison of the average composition of all samples of complete fertilizers 

 for which guaranties are recorded with the average of the corresponding guar- 

 anties, for several seasons past including those of this season follows: 



Average Composition and Guaranty Compared. 



Phosphoric acid: 



Total 



Available, 



Potash 



Nitrogen 



Spring, 1902. 



Phosphoric acid: 



Total 



Available, . . . 



Potash 



Nitrogen 



Fall. 1902. 



Phosphoric acid: 



Total 



Available, ... 



Potash, 



Nitrogen 



Spring, 1903. 



Phosphoric acid: 

 Total 



Available, 



I'otash 



Nitrogen, 



Fall, 1903. 



Phosphoric acid: 



Total 



Available, 



Potash 



Nitrogen, 



Spring, 1?04. 



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, 19C6. 



Phosphoric acid: 



Total 



Available, ... 



Potash 



Nitrogen 



Fall, 1906. 



