1910.] 



PUBLIC DOCUMENT — No. 31. 



53 



The above table shows : — 



1. That 296 distinct brands of complete licensed fertilizers 

 were collected and analyzed. 



2. That 138 brands ( 4G.G per cent, of the whole nnnil^er 

 analyzed) fell below the niannfacturer's gnarantee in one or 

 more elements. 



3. That lOV) brands were deficient in one element. 



4. That 30 l)rands were deficient in two elements. 



5. That 2 brands were deficient in all three elements. In 

 this connection it might be added that 80 brands were fonnd 

 deficient in nitrogen, 03 in potash and 28 in phosphoric acid. 



6. That 45 ont of the 200 brands analyzed (over 15 ])er cent, 

 of the total nnmber) showed a commercial shortage. The term 

 " commercial shortage " means that the brands in qnestion did 

 not show the quantity and valne of plant food guaranteed, 

 althongh the excess of any element of plant food was figured in 

 full valne to offset the deficiencies. 



7. That certain manufacturers are either extremely careless 

 in mixing or else they do not allow a sufficient margin for 

 variation in the composition of crude stock. In other w^ords, 

 they try to have their goods run too close to the minimnm 

 gnarantee. 



(/) Commerc'uil SJiortagrs. 



The following table has been ]irepared to show the commer- 

 cial shortages in the mixed fertilizers for !he season of 1009, 

 also to furnish a comparison with the ]irevious year: — 



Commercial Shortages. 



The season of 1009 shows the largest number of deficiencies 

 and commercial shortages which has probably ever occnrred 



