1902.] 



PUBLIC DOCUMENT — No. 33. 



93 



A comparison of the above-stated results of our inspection 

 with the results of the previous year shows that the manu- 

 facturer's standard or guarantee has been as well maintained 

 as in the past ; and in nearly all cases whiere a discrepancy 

 has occurred between the results of analysis and the manu- 

 facturer s o-uarantee, the commercial value of the article has 

 not suffered, the low percentage of one element of plant 

 food having been balanced by a correspondingly higli per- 

 centao:e of some one of the other ino;redients. 



The fertilizer bulletins become of the utmost value when 

 considered from the stand-point of a source of intelligence 

 to the farmer to select his fertilizer for the next year's con- 

 sumption . 



In deciding what brands of commercial fertilizer to pur- 

 chase for general use, select the one that will furnish the 

 greatest amount of nitrogen, potash and phosphoric acid, in 

 a suitable and available form, for the same money. 



Trade Values of Fertilizing Ingredients in Raw Materials and 

 Chemicals^ 1900 and 1901 (Cents j)er PoiuuV). 



A comparison of the above trade values for 1900 and 1901 

 shows a somewhat higher cost of organic nitrogen and ni- 

 trogen in form of nitrates, and a corresponding doorcase in 

 the cost of ammonia salts. Phosphoric acid soluble in water 



