20 



AMMONIATED SUPERPHOSPHATES. 



Tlie following table shows to what extent the various brands of ammoni- 

 ated superphosphate supplied the nitrogen and available phosphoric acid 

 which was guaranteed : — 



Six brands showed commercial shortages of over $1 per ton, overruns being 

 used to offset shortages in all instances. Three of these brands showed a com- 

 mercial shortage between $1 and $2, one between $2 and $3, one. betw^een $3 

 and $4, and one over $4 per ton. The brands of ammoniated superphosphate 

 showing commercial shortages of $1 or over per ton are as follows : — 



