6 The Bulletin. 



The valuations decided on this season, for reasons already given, 

 are: 



VALUATIONS FOR 1908. 



In Unmixed or Raw Materials. 



For phosphoric acid in acid phosphate 4 cents per pound. 



For phosphoric acid in bone meal, basic slag 



and Peruvian guano 3% cents per pound. 



For nitrogen 18 cents per pound. 



In Mixed Fertilizers. 



For available phosphoric acid IV2 cents per pound. 



For nitrogen 19% cents per pound. 



For potash 5% cents per pound. 



HOW RELATIVE VALUE IS CALCULATED. 



In the calculation of relative value it is only necessary to remember 

 that so many per cent means the same number of pounds per hundred, 

 and that there are twenty hundred pounds in one ton (2,000 pounds). 



With an 8 — 2 — 1.65 goods, which means that the fertilizer con- 

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

 nitrogen 1.65 per cent, the calculation is made as follows: 



™ T , . imT , Value Per Value Per Ton, 



Percentage, or Lbs. in 100 Lbs. 1Q0 Lbg _ 2 ,000 Lbs. 



8 pounds available phosphoric acid at 4£ cents 0.36 X20= $7.20 



2 pounds potash at 5^ cents 0.11 X20= 2.20 



1.65 pounds nitrogen at 19$ cents 0.321 X20= 6.42 



Total value _._, 0.791X20= $15.82 



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

 Freight rates from the seaboard and manufacturing centers to interior 

 points are given in the following table: 



