680 



ANNUAL. REPORT OP THE 



Off. Doc. 



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

 plete fertilizers for which guaranties are recorded, with the average 

 of the corresponding guaranties, for several seasons past, follows : 



Average Composition and Guaranty Compared. 



Phosphoric acid: 



Total. 



Available, .. 



Potash 



Nitrogen 



Spring, 1903. 



Phosphoric acid: 



Total, 



Available, .., 



Potash 



Nitrogen 



Fall. 1903. 



Phosphoric acid: 



Total 



Available, .. 



Potash, 



Nitrogen 



Spring, 1904. 



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 acid: 



Total 



Available, .. 



Potash, 



Nitrogen, 



Fall. 1906. 



Phosphoric acid: 



Total 



Available. .. 



Potash 



Nitrogen. 



Spring, 1907. 



