2S I 



CHEMICALS AND RAW PRODUCTS. 

 Summary of Results of the Inspection of Chemicals and Raw Products. 



1 Total potash. 



2 The phosphoric acid and potash in a ton of cottonseed meal will average in commercial valuation, 

 according to 1925 fertilizer trade values, $3.42, and in castor pomace, $2.14. In calculating the pound 

 cost of nitrogen and commercial valuations the value of the phosphoric acid and potash was not included. 



^ In calculating the pound cost of potash it was assumed that the nitrogen cost was the same per pound 

 as in nitrate of soda. 



* Average tankage finer than 1/50 inch diameter, 51.38 per cent; coarser than 1/50 inch, 48.62 per cent. 

 5 Average bone finer than i/so inch diameter, 71.44 per cent; coarser than Vso inch, 28.56 per cent. 



* Average of seven analyses showed 6.36 per cent of total potash, 10.43 per cent of water, and 12.52 per 

 cent of insoluble, earthy matter. 



' This valuation is based on the average potash and phosphoric acid and does not include the lime and 

 magnesia, which in a ton of average wood ashes would value about $2.50 to $3.50. 



Nitrogen Compounds. 



The tables found under this heading record the analyses of fertilizer chemicals 

 and unmixed materials valued principally for their nitrogen. Averages are given 

 when more than one analysis has been made of the same brand, and footnotes refer 

 to all such cases. Brands showing a commercial shortage of one dollar or over 

 per ton are grouped by themselves, but form a part of the appropriate table. De- 

 ficiencies are emphasized by boldface type. 



