No. 5. 



DEPARTMENT OP AGRICULTURE. 



457 



The cases of deficiency noted during the past nine seasons in the 

 composition of goods as compared with their guaranties, expressed 

 in percentage of the total number of goods of each class analyzed, 

 are as follows : 



Percentage of Deficiency, 1910-1914. 



fa 



Complete fertilizers 



Dissolved bone, 



Rock and potash, 



Dissolved rock, 



Ground bone 



All classes except miscellaneous, 



27.1 

 0.0 

 35.8 

 18.9 

 31.8 

 28.0 



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

 plete fertilizers for which guaranties are recorded with the average 

 of the corresponding guaranties, for several seasons past, including 

 those of this season, follows: 



Average Composition and Guaranty Compared. 



Spring, 1910. 

 Phosphoric acid: 



Total, 



Available, 



Potash, 



Nitrogen, 



Fall, 1910. 

 Phosphoric acid: 



Total 



Available, 



Potash 



Nitrogen, 



Spring, 1911. 

 Phosphoric acid: 



Total 



Available 



Potash 



Nitrogen, 



Fall, 1911. 

 Phosphoric acid: 



Total 



Available, 



Potash 



Nitrogen 



Spring, 1912. 

 Phosphoric acid : 



Total 



Available, 



Potash 



Nitrogen 



