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which are known to be readily available. Under "Quality of Organic," "Good" in- 

 dicates an activity of 55 per cent or better by the alkaline permanganate method; 

 "Passed" indicates an activity between 50 and 55 per cent; "Inferior" indicates 

 an activity below 50 per cent, all being measured by the same laboratory method. 

 All questionable samples discovered by this method are subjected to the neutral 

 permanganate method, which gives somewhat more favorable results on ammoniates 

 of an organic vegetable origin. All samples are passed without question which show 

 an activity of 85 per cent or better by this method, even though they have shown 

 an activity below 50 per cent by the alkaline method. All samples are passed which 

 show the sum of the mineral, water soluble organic and active water insoluble organic 

 nitrogen equivalent to the minimum guarantee, even though the activity of the water 

 insoluble organic nitrogen may be below 50 and 85 per cent by the laboratory methods. 

 Serious deficiencies are emphasized by boldface type. 



The simplified method of presenting results of analyses on fertilizer mixtures 

 substantially complying with the guarantee, which was adopted in 1921, is followed 

 this season. These tables are self-explanatory. 



Detailed results of analysis of any brand inspected can and wall be furnished to 

 any one sufficiently interested to make application for the same. 



