December, 1909.] FERTILIZERS. 159 



carefully l)uth the price and guarantee before placing an 

 order. 



Generally speaking, the analyses show no very great 

 deviation from the guarantees. One sample evidently has 

 been misbranded. The samples of one manufacturer 

 showed conclusive evidences of very poor mixing. This 

 introduces an element of unfairness to the consumer. While 

 there is not the least question of the integrity of the manu- 

 facturers, it is scarcely fair for one consumer to pay for 

 what another gets. 



In many samples the calculations of the mixers have been 

 made with such niceness that tliQ margin of safety has been 

 almost entirely eliminated. 



A large percentage of the samples do not come up to the 

 guarantee in regard to the available phosphoric acid. This 

 same observation is made in most of the New England re- 

 ports. We question why this is so. Is it because some 

 inferior material is used as a filler or drier, or because of 

 some more legitimate reason? 



Acknowledgment is made here to Messrs. Waldo Adams 

 and Clearton Reynolds for their assistance in the analytical 

 work. 



The analyses of the licensed brands of fertilizers follow. 

 Where deficiencies are found the results appear in block 

 type. 



