8 The Bulletin 



With an 8-2-1.65 goods, which means that the fertilizer contains avail- 

 able phosphoric acid 8 per cent, potash 2 per cent, and nitrogen 1.65 per 



cent, the calculation is made as follows : 



Value ver Value per Ton, 



Percentage or Lbs. in 100 Lbs. 100 Lbs. 2,000 Lbs. 



8 pounds available phosphoric acid at 5 cents 0.40 X20 $ 8.00 



1.65 pounds nitrogen at 21 cents 0.3465X20 6.93 



2 pounds potash at 25 cents 0.50 X20 10.00 



Total value 1.2465X20 $ 24.93 



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



