68 THE CONNECTICUT AGRICULTURAL 



valuable as a fertilizer, containing over 20 per cent, of potash 

 and 9 to 13 per cent, of phosphoric acid. 



When burned with coal the ashes would be of very inferior 

 value or worthless. When the ashes of the hulls can be got clean 

 from coal ash, they are well worth the price which has been asked 

 for them. 



Below are given the analyses of two samples made here during 

 the year, the average of seven analyses of cotton hull ashes from 

 the markei and an analysis of the pure ash, free from any wood 

 ashes, sand, coal and carbonic acid, made by Dr. C. W, Dabney„ 

 Jr. (Rep. N. C. Exp't Station, 1882, p. 99) : 



eK.it ana Average Pure ash 



99£ WW(» composition, of Hull. 



Potash, 25.83 26.79 21.89 57.95 



Lime, ''•28 



Magnesia, ^15.53 



Oxide of iron, 1-87 



Alumina, 0,45 



Phosphoric acid, 12.95 9.65 10.11 4.07 



Sulphuric acid,. .-. .. 4.18 



Soluble silica, . 1-67 



Chlorine, - • 2.39 



Soda, undetermined and loss, . ' 4.61 



Water, 5.69 12.10 15.02 



Insoluble in acid. 11,63 12.45 



100.00 



The solubility of the phosphoric acid in 852 and 859 was as^ 



follows : 



852 909 



Phosphoric acid, soluble in water, 90 3.49 



" " " in ammonium citrate, 7.96 5,39 



" " insoluble in water and am. cit, 4.09 .77 



12.95 9.65 



Composition of House Ashes. 



1026. Ashes from 46f lbs. of Gray Birch from Holderness, N. 

 Hampshire. The wood was 2-6 inches diameter, 18 inches long 

 and well seasoned. The ash as analyzed weighed 1 lb. 1-^ oz. 



1032. Ashes from 105f lbs. of well seasoned hickory wood. 

 Sticks 2 feet long, 2-7 inches diameter. The ash weighed 2 lbs. 2 oz. 



1040. Ashes from 105^ lbs. of well seasoned oak wood. Sticks 

 2 feet lono-, H to 6 inches diameter. The ash weighed 1 lb. 1^ oz. 



