134 Keport op the Acting Director and Chemist of the 



Rules for Calculating from one Compound ento Other 



Compounds. 



{a) Com^pminds Containing Nitrogen. 



(1) To change ammonia into an equivalent amount of nitrogen, 

 multiply the amount of ammonia by 0.82. 



(2) To change nitrogen into an equivalent amount of ammonia, 

 multiply the amount of nitrogen by 1.21. 



(3) To change nitrate of soda into an equivalent amount of 

 ammonia, divide the, amount of nitrate of soda by 5. 



(4) To change nitrate of soda into an equivalent amount of nitro- 

 gen, divide the amount of nitrate of soda by 6. 



(5) To change nitrogen into an equivalent amount of nitrate of 

 soda, multiply the nitrogen by 6. 



(6) To change sulphate of ammonia into an equivalent amount of 

 ammonia, divide the amount of pure sulphate of ammonia by 4. 



(7) To change ammonia into an equivalent amount of sulphate of 

 ammonia, multiplj^ the amount of ammonia by 4. 



(8) To change nitrate of potash into an equivalent amount of 

 nitrogen, divide the amount of nitrate of potash by 7.2. 



(b) Comjpounds Containing Potash. 



(9) To change muriate of potash into an equivalent amount of 

 actual potash, multiply the amount of muriate l)y 0.63. 



(10) To change actual potash into an equivalent amount of 

 muriate of potash, multiply the amount of actual potash by 1.6. 



(11) To change sulphate of potash into an equivalent amount of 

 actual potash, multiply the amount of sulphate of potash by 0.51. 



(12) To change actual potash into an equivalent amount of sul- 

 phate of potash, multipl}' the amount of actual potash by 1.85. 



(13) To change nitrate of potash into an equivalent amount of 

 actual potash, multiply the amount of nitrate of potash by 0.46. 



(14) To change actual potash into an equivalent amount of nitrate 

 of potash, multiply the amount of actual potash by 2.15. 



Rules for Making Valuations of Unmixed Fertilizing 



Materials. 



{a) Materials Containing Nitrogen. 

 (1) Sul-phate of Anmwnia. Rule. Multiply the given per 

 cent, of ammonia by 0.82 and this product by the price of one 



