4 N. II. AGR. EXPERIMENT STATION [Bulletin 263 



per cent of the guarantees deficient 11.7. In the last 

 year's inspection this figure was 13.0 per cent. The pre- 

 vious year it was 12.3 per cent. ]\Iany of the deficiencies 

 were comparatively negligible, the small deficiency in 

 one constituent being offset in value by overrun in otlier 

 constituents. 



A detailed summary of the deficiencies in the 47 brands 

 which failed to meet the guarantees follows : 



Number 



of Total 



Brands Deficiencies 



Nitrogen, total phosphoric acid, available 



phosphoric acid and potash 1 4 



Nitrogen, total phosphoric acid and 



potash 



Nitrogen, available phosphoric acid and 



potash 



Nitrogen, total phosphoric acid and avail- 

 able phosphoric acid 



Nitrogen and total phosphoric acid 



Nitrogen and available phosphoric acid.... 



Nitrogen and potash 



Nitrogen 



Total phosphoric acid, available phos- 

 phoric acid and potash 



Total phosphoric acid and potash 



Available phosphoric acid and potash 



Potash 



Total phosphoric acid and available 

 phosphoric acid 



Total phosphoric acid 



Available phosphoric acid 



47 54 



NITROGEN DEFICIENCIES 



One hundred twenty-one l)rands were guai-anteed to 

 contain nitrogen in amounts varying from 0.82 per cent 



