578 



BOARD OF AGRICULTURE. 



[Jan. 



Wood Ashes. 



[I. Sent on by F. H. "Williams, Sunderland, Mass. 11. Sent on by C. H. Thomp- 

 son & Co., Boston, Mass. III. and IV. Sent on from Amherst, Mass.] 



n. 



in. 



IV. 



Moisture at 100° C, . . . . 



Phosphoric acid, 



Magnesium oxide, .... 



Calcium oxide, 



Potassium oxide, 



Insoluble matter (before calcination), 

 Insoluble matter (after calcination) , . 



8.31 

 1.65 

 2.41 



37.39 

 7.78 



10.93 

 6.15 



2.57 



1.53 



5.29 



26.94 



7.95 



17.44 



15.66 



8.67 

 1.25 

 2.88 



39.06 

 5.38 



17.42 

 8.79 



19.14 

 1.72 

 3.04 



30.16 

 4.76 



21.76 



13.45 



Wood Ashes. 



[ I. Sent on by S. M. Farnsworth, Harvard, Mass. II. Sent on by J. J. H. Gregory, 



Marblehead, Mass. III. Sent on by D. G. Lang, Concord, Mass.] 



