6 The- Bulletin. 



With an 8 — 2 — 2 goods, which means that the fertilizer contains 

 available phosphoric acid 8 per cent, potash 2 per cent, and ammonia 

 2 per cent, the calculation is made as follows : 



-r. j-t-, • -,nr>-ru ValuePer Value Per Ton, 



Percentage of Lbs. in 100 Lbs. 10 q j^ bg 2 000 Lbs. 



8 pounds available phosphoric acid at 4J cents 0. 36 X 20= $7. 20 



2 pounds potash at 5J 0.11X20= 2.20 



2 pounds ammonia at 16J cents 0.33X20= 6.60 



Total value 0.80X20= $16.00 



Freight and merchant's commission must be added to these prices. 

 Freight rates from the seaboard and manufacturing centers to inte- 

 rior points are given in the following table : 



