542 



ANNUAL. REPORT OF THE 



Off. Doc. 



The cases of deficiency noted during the past ten seasons in goods as com- 

 pared with their guaranties expressed in percentage of the total number of goods 

 of each class analyzed, are as follows: 



Percentage of Deficiency 1902-1906. 



Complete fertilizers 



Dissolved bone, 



Rock and potash, 



Dissolved rock, 



Ground bone 



AU classes except miscellaneous 



36.7 

 50.0 

 43.5 

 8.9 

 25.0 

 33.2 



37.5 

 33.3 

 32.9 

 23.2 

 33.3 

 35.1 



37.9 

 63.6 

 43.2 

 20.0 



44.7 



*Only two samples analyzed for which no guarantees are reported. 

 tOnly two samples analyzed for which guarantees are recorded. 



c 

 X, 

 a. 



00 



39.4 

 16.6 

 43.7 

 19.5 

 18.5 

 36.1 



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 follow: 



Average Composition and Guaranty Compared. 



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. 1904. 



Phosphoric acid: 



Total 



Available, 



Potash, ; ; 



Nitrogen, 



Fall, 1904. 

 Phosphoric acid: 



Total 



Available 



Potash ' " 



Nitrogen, !'..!".!!!!!.. 



„. Spring, 1905. 



Phosphoric acid: 



Total 



Available 



Potash ; ■ ■ ■ 



Nitrogen ,', 



