674 



ANNUAL. REPORT OF THE 



Off. Doc. 



Deficient in four constituents 



Delicient in three constituents 



Deficient in two constituents 



Deficient in one constituent 



Total number of samples in which deficiencies occur, 



The cases of deficiency noted during the past ten seasons in 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 1903-1908. 



Complete fertilizers 



Dissolved bone 



Rock and potash, 



Dissolved rock 



Ground bone 



All classes except miscellaneous 



iS] 



c 

 p, 



Ul 



40.0 



tso.oo 



39.0 

 21.2 

 38.0 



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

 tOnly two samples analyzed for which guarantees are recorded. 

 tOnly four samples analyzed. 



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

 plete fertilizers for which guarantees are recorded with the average 

 of the corresponding guaranties, for several seasons past including 

 those of this season, follows: 



Average Composition and Guaranty Composed. 



Phosphoric acid: 



Total 



Available, ... 



Potash 



Nitrogen 



Spring, 1903. 



11.90 

 9.36 

 3.85 



1.58 



10.67 

 8.73 

 3.63 

 1.61 



