EXPERIMENT STATION. " 69 



1051. Ashes from 55i|^ lbs. of well seasoned chestnut wood. 

 Sticks 1 foQ^, long, 6-12 inches diameter. Cut on the Station 

 land one year ago. The ashes weighed 4^ oz. 



1032 and 1040 were from wood bought of a dealer in New 

 Haven and probably grown in this State. 



All of these woods were burned on a clean brick hearth with- 

 out the addition of any other kind of fuel. The bits of charcoal, 

 left from the fire were sifted out and burned by themselves and 

 the ash from them was added to the other. With these analyses 

 are given analyses of ashes from the same kinds of wood which 

 were prej^ared by G. H. Glover, Esq., of Noi-th Branford, in a 

 stove, and noticed in the report of this Station for 1879, page 45. 

 [Nos. 253, 254, 255.] The amount of insoluble matter [sand, 

 etc.] in them is much larger than in the others. 



Next in the table is given the average of 13 analyses of wood 

 from household fires as reported by Dr. F. H. Storer (Bull. Bussy 

 Institution, part III, 18V4, p. 193). 



The last column of the table represents the average composi- 

 tion of nnleached Canada ashes calculated from 13 analyses pub- 

 lished in Bulletins II and IV of the Massachusetts Agricultural 

 Experiment Station. 



O 1) t- ^ 



Birch. Hickory. Oak. Chestnut. ^gS g|^ 



1026 1032 255 1040 254 1051 253 <2^ " £ 



Potash.. ._ 8.15 7.54 4.56 9.26 9.37 3.96 3.07 8.50 5.77 



Soda .43 1.57 .53 1.38 1.92 .92 .42 



Lime • 35.31 42.60 36.29 43.20 29.65 39.72 29.15 38.99 



Magnesia 4.36 6.51 5.71 4.28 3.65 5.82 9.63 



Oxide of Iron and 



Akimina, .73 .56 2.79 .98 3.73 2.61 5.21 



Phosplioric acid 2.30' 2.19 1.63 1.92 2.42 1.69 2.51 2.04 1.17 



Sulphuric acid .39 .90 .99 .96 1.88 1.08 2.46 



Chiorine .16 .19 .63 1.49 .17 



Carbonic acid 26.72 31.65 23.22 27.45 16.57 24.00 12.80 25.53 



Sand and Silica 10.30 3.70 18.09 7.15 22.07 15.80 26.70 6.97 7.07 



Charcoal _. 6.65 .88 1.51 .85 1.97 2.40 3.26 



Water 4.(?5 1.93^ ^ ^g 1.35 5.28 1.80 4.62 11.40 



Undetermined S 



99.39 100.19 100.00 99.41 100.00 99.80 100.00 

 Per cent, of crude 



ash in the wood.. 2.27 2.01 1.04 .50 



The two samples of chestnut ashes differ remai'kably from oak, 

 birch and hickory ashes in having very much less potash. A 



