Analyses of Fertilizers. 



487-489. WOOD ASHES. 



I. Sent on from Ipswich, Mass. 

 II. — III. Sent on from Concord 



Moisture at 100° C, 

 Calcium oxide, 

 Magnesium oxide, 

 Potassium oxide. 

 Phosphoric acid, 



Insohible matter (before calcination) 

 •' " (after calcination), 



Sample I. contains but one-half the amount of potash of an ordi- 

 nary quality of Canada Wood-ash. Samples II. and III. are of a 

 good quality, and correspond fairly with the guaranty of the dealer. 

 The question has been repeatedly asked, on what basis to adjust 

 differences between a stated guaranty of composition and the actual 

 results of an analysis of a sample of wood-ash : — our answer has 

 been in these cases, to allow 5^ cts. for every pound of potassium 

 oxide and 6 cts. for every pound of phosphoric acid, which the anal- 

 ysis shows to be less than the guaranty states to be present. 



489—492. COTTON SEED HULL ASHES. 



I. Sent on from Hatfield, Mass. 

 II. Sent on from Agawam, Mass. 

 III. Sent on from So. Deerfield, Mass. 



Per Cent. 

 I. II. III. 



Moisture at 100° C, 

 Phosphoric acid, (6 cts. per lb.) 

 Potassium oxide, (5| cts. per lb.) 

 Calcium oxide, 

 Magnesium oxide. 



Insoluble matter (before calcination) 

 "• " (after calcination). 



Valuation per 2000 pounds, 



The samples are of an excei)tionably good quality 



