Jan., 1929] fertilizer inspection, 1928 



TABLE I 



CONFORMITY TO GUARANTEE 



Fifty-five of the 128 brands analyzed were found to 

 contain less than the guarantee of one or more of the three 

 constituents. The total number of guarantees on the 128 

 brands was 444, the total number of deficiencies 87, the 

 per cent deficient 19.6. This shows some improvement over 

 last year when the corresponding per cent was 24.5. Many 

 of these deficiencies were comparatively negligible, however, 

 the small deficiency in one constituent being offset in value 

 by overrun in other constituents. 



A detailed summary of the deficiencies in the 55 brands 

 which failed to meet their guarantees follows : 



