II. 



ANALYSES OF COMMERCIAL FERTILIZERS AND MAN- 



URIAL SUBSTANCES SENT ON FOR 



EXAMINATION. 



886-889. 



I. Animal meal and tankage. Sent on from Eastham, Mass. 



II. Tankage and potash. Sent on from Eastham, Mass. 



III. Cotton-hull ashes. Sent on from Boston, Mass. 



IV. Florida rock phosphate. From Station barn. 



I. II. III. ir. 



Moisture at 100° C, 3.20 6.20 9.87 2..^2 



Oxides of iron and alumina, - - — — 14.25 



Calcium oxide, — — — 17.87 



Phosphoric acid, 19.71 15.35 7.68 21.72 



Potassium oxide, — 6.75 24.06 — 



Nitrogen, 4.48 3.93 — — 



Insoluble matter, — — 15.38 30.50 



§90—894. WOOD ASHES. 



I. Sent on from Winchendon, Mass. 



II. Sent on from North Hadley, Mass. 



III. Sent on from Concord, Mass. 



IV. Sent on from Framingham, Mass. 



V. Sent on from North Sudbury, Mass. 



I. II. III. ir. r. 

 Moisture at 100° C, 23.07 4.48 16.16 16.39 17.74 



Calcium oxide, 33.04 37.32 32.46 35.52 33.76 



Potassium oxide, 2.87 6.75 5.88 4.83 6.45 



Phosphoric acid, 1.48 1.82 1.07 1.33 1.00 



Insoluble raatter(before calcination), 10. 96 15.53 15.34 10.07 13.37 

 Insoluble matter (after calcination), 9.29 13.72 13.09 9.28 12.13 

 895-899. WOOD ASHES. 



I and II. Sent on from Concord, Mass. 



III. Sent on from Eastham, Mass. 



IV. Sent on from Westboro', Mass. 



V. Sent on from Sunderland, Mass. 



I. II. III. IV. V. 



Moisture at 100° C, 8.96 13.00 15.33 20.57 19.52 



Calcium oxide, 25.60 36.44 36.14 32.03 29.51 



Potassium oxide, 3.00 8.74 5.96 5.93 6.21 



Phosphoric acid, .97 1.79 .26 1.48 1.83 



Insoluble matter (before calcination), 36. 93 8.44 12.91 10.05 13.47 



Insoluble matter(after calcination), 34.89 6.40 10.38 8.09 10.85 



