1887.] 



PUBLIC DOCUMENT — No. 33. 



109 



Southern source accounts for this fact by stating that more or 

 less seeds are not unfrequently mixed with hulls when burned. 

 An article which represents a high money value, like the above 

 material, ought to be bought only on analysis. 



Cotton Seed Hull Ash. 



[Sent on from Northampton, Mass ] 



Cotton Seed Hull Ash. 



[Sent on for examination from Northampton, Mas?.] 



Moisture at 100° C, ... 



Calcium oxide, ..... 

 Magnesium oxide, .... 

 Phosphoric acid (6 cents per pound), 

 Potassium oxide (5 J cents per pound), 

 Insoluble matter, .... 



Per cent. 



2.30 

 11.63 

 15.24 

 13,67 

 30.82 

 21.65 



Valtiation per 2,000 pounds, . $50 30 



The percentage of potash found in the above sample is ex- 

 ceptionally high. The same may be said of the phosphoric 

 acid. 



