1890.] 



PUBLIC DOCUMENT — No. 33. 



259 



6. Analt/ses of Commercial Fertilizers and Manurial 

 Substances sent on for Examination. 



Wqod Ashes. 



[I., 11. ami III. sent on from Amherst, Mass. ; IV. sent on by E. C. Smith, 

 Rowley, Mass.] 



Wood Ashes. 



[I. and II. sent on by C. H. Thompson & Co., Boston, Mass. ; III. sent on by J. C. 

 Comins, N. Amherst, Mass. ; IV. sent on b}' Chas. N. Perley, Danvers, Mass.] 



IV. 



Moisture at 100° C, 

 Calcium oxide, 

 Magnesium oxide. 

 Potassium oxide, . 

 Phosphoric acid, . 

 Insoluble matter (befor 



e calcination). 



Insoluble matter (after calcination), 



7.72 



42.39 

 2.65 

 5 38 

 1.15 

 9.26 

 6.37 



