280 Report of the Chemist of the 



Average Composition of Chemicals and Incomplete Fertilizers. 



a ® 

 Per Cent Guaranteed. Per Cent Found. a> > 



' o 



« 





*> « . *> » 





ij n •< iJ n •< <i 



Nitrogen in 



Nitrate of soda 14.76 16.00 15.16 14.80 15.76 15.59 0.43 



Sulphate of ammo- 

 nia 20 



Dried blood 9.75 10.50 10.10 9.27 



Dissolved phosphates, 

 Phosphoric acid 



Available ... 10.00 30.00 13.64 11.05 



Water-soluble 3 . 73 



Insoluble 0. 



Potash in 



Kainit 12.40 12.48 12.44 11.94 



Muriate 50. 50.40 50.20 49.74 



Sulphate • . 22.50 



Fish scrap 



Nitrogen 5.00 8.50 7.17 5.35 



Phosphoric acid.... 4.00 6.00 5.34 3.84 

 Bone meal 



Nitrogen 1.00 4.00 2.50 1.05 



Phosphoric acid 9.00 26.67 19.10 10.93 



Mixtures containing 

 Phosphoric acid 



Available 8.00 13.00 10.25 7.40 



Insoluble . 



Potash 1.00 10.00 3.65 0.84 



TRADE VALUES OF PLANT-FOOD ELEMENTS IN RAW MATERIALS AND 



CHEMICALS. 



The trade values in the following schedule have been agreed 

 upon by the Experiment Stations of Massachusetts, Rhode Island, 

 Connecticut, New York, New Jersey and Vermont, as a result of 

 study of the prices actually prevailing in the large markets of 

 these states. 



These trade values represent, as nearly as can be estimated, the 

 average prices at which, during the six months preceding March, 



* Below guarantee. 



