892 ANNUAL RE^POKT OF THE Off. Doc. 



Summary of Instances of Deficiency from Guaranty. 



The cases of deflciencj' noted during the past nine seasons in 

 the goods as compared with their guaranties expressed in percent- 

 age of the total number of goods of each class analyzed, are as fol- 

 lows: 



Percentage of Deficiency, 1899-1908. 



Complete fertilizers 



Dissolved bone 



Rock and potash, 



Dissolved rock 



Ground bone, 



All classes except miscellane 

 ous, 



be 





37.5 

 33.3 

 32. a 

 23.2 

 33.3 



35.1 



Marked variations in the general percentages of deficiency occur 

 from year to year. During the past season, they have been some- 

 what above normal. In most samj)les which are found below 

 guaranty at one point, there is an excess at some other point, in- 

 dicating that the cause of the departure from the composition 

 guaranteed lay not in the failure of the manufacturer to use the 

 requisite components, but in his failure to secure a uniform mixture. 

 Considering all cases of complete fertilizers in which guaranties 



•Only two samples analyzed. 

 tOnly one sample analyzed. 



