COMPOSITION OF FERTILIZERS. 393 



isfactory results, like ourselves, in obtaining reliable fertil- 

 izers, by strictly adhering to the chemical control adopted, 

 and by providing for chemistry what it needs for efficient 

 work, both confidence and ample means." 



Charles A. Goessmann. 



Note. — For the sake of convenience of reference and as throwing some 

 light on the analyses in the body of the Report, I append the 



COMPOSITION OF SOME COMPOUNDS IN FERTILIZERS. 



100 parts of Nitric acid contain 26.0 parts Nitrogen. 

 Ammonia contain 54.0 parts Nitrogen. 

 Nitrate of potassa contain 46.6 parts Potassium oxide. 

 Nitrate of potassa (or saltpetre) contain 53.4 parts Nitric acid. 

 Nitrate of soda contain 36.75 parts Sodium oxide. 

 Nitrate of soda (or Chili saltpetre) contain 63.25 parts Nitric 



acid. 

 Sulphate of potassa contain 54.9 parts Potassium oxide. 

 Sulphate of potassa contain 46.0 parts Sulphuric acid. 

 Sulphate of lime (free of water) contain 41.0 parts Calcium 



oxide. 

 Sulphate of lime (free of water) contain 59.0 parts Sulphuric 



acid. 

 Sulphate of lime (with water, gypsum) contain 32.5 parts 



Calcium oxide (lime) . 

 Sulphate of lime (with water, gypsum) contain 46.5 parts 



Sulphuric acid. 

 Sulphate of lime (with water, gypsum) contain 21.0 parts 



water. 

 Bone phosphate (or tricalcic phosphate) contain 54.0 parts 



Calcium oxide (lime). 

 Bone phosphate (or tricalcic phosphate) contain 46.0 parts 



Phosphoric acid. 

 Carbonate of lime contain 56.0 parts Calcium oxide (lime). 

 Carbonate of lime contain 44.0 parts Carbonic acid. 

 Chloride of potassium contain 52.4 parts Potassium. 

 Chloride of potassium contain 63.1 parts Potassium oxide. 

 Chloride of potassium contain 47.6 parts Chlorine. 



C. A. G. 

 50 



