II. 



ANALYSES OF COMMERCIAL FERTILIZERS AND MAN- 



URIAL SUBSTANCES SENT ON FOR 



EXAMINATION. 



871-S75. 



I. 



II. 



111. 



IV. 



V. 



Boiler soot. Seut on from Hatfield, Mass. 



Mill sweepings. Seut ou fi'om Westboro', Mass. 



Saltpetre. Sent on from S. Acton, Mass. 



Horse manure. Sent on from Westboro', Mass. 



Sewage. Sent on from Danvers, Mass. 



C. 



Moisture at 100 

 Phosphoric acid. 

 Potassium oxide. 

 Calcium oxide. 

 Magnesium oxide. 

 Nitrogen, 

 Insoluble matter, 

 876—880. I and II. 



I. 



18.80 



1.60 



.54 



2.31 



1.19 



58.91 

 Ground bone 



Ji. 



9.49 



1.18 



.66 



3.76 

 5.01 



III. 



.66 



45.74 



1 1 .88 



ir. 



11.25 

 1.46 



2.82 



.74 

 12.60 



F. 



99.959 

 .0012 

 .0033 



.0028 



Sent on from Concord, Mass. 



III. 

 IV. 

 V. 



Natural phosphate. Sent ou from Ashby, Mass. 

 Sentou from Agawam, Mass. 

 Sent on from Boston, Mass. 



Cotton hull ashes. 

 Cotton hull ashes. 

 I. 



Moisture at 100° C, 

 Total phosphoric acid, 

 Soluble " " 

 Reverted " " 

 Insoluble " " 

 Potassium oxide. 

 Nitrogen, 

 Insoluble matter. 



9.23 

 21.80 

 None 

 12.96 



8.84 



II. 



8.71 

 20.29 

 None 

 10.20 

 10.09 



III. 



3.58 

 .23 



IV. 



13.92 

 9.21 



F. 



7.77 

 7.83 



— 24.12 20.40 



3.54 3.70 — — 



77.04 9.33 11.78 



881—885. WOOD ASHES. 



I. Sent on from Tewksbury, Mass. 

 II and III. Sent on from Concord, Mass. 

 IV and V. Sent on from North Amherst, Mass. 

 I. II. III. ir 



Moisture at 100° C 



Potassium oxide. 



Phosphoric acid. 



Insoluble matter(before calcination) 



11.30 15.01 8.49 



6.80 8.05 7.10 



1.69 .67 .31 



16.56 18.38 16.97 



Insoluble matter(after calcination), 13.66 15.84 15.25 



V. 



18.13 14.25 



5.05 5.95 



.92 1.43 



15.33 15.03 



13.46 12.75 



