1888.] 



PUBLIC DOCUMENT — No. 33. 



169 



Nos. 1, 2 and 4 are unleached Canada ashes; the large 

 amount of moisture and of insoluble matter in No. 4 ex- 

 plains its lower percentage of potash. Sample No. 3 is a 

 partially leached ash. . 



Cotton-seed Hull Ashes. 



[Sent on from North Hadley, Mass.] 



Moisture at 100° C 



Potassium oxide (5^ cents per potmd), 

 Magnesium oxide, 



Phosphoric acid (6 cents per ijound), 

 Calcium oxide, .... 

 Insoluble matter, .... 

 Valuation per 2,000 pounds. 



These samples contain an exceptionally high percentage 

 of potassium oxide and of phosphoric acid. 



Cotton-seed Hidl Ashes. 



[Sent on from North Hadley, Mass.] 



