Moisture at 100° C, 

 Total phosphoric acid, 

 Available phosphoric acid, 

 Insoluble phosphoric acid. 

 Nitrogen, 



50—52. NITRATE OF SODA. 



I. Sent on from Westford, Mass. 



II. Sent on from Boston, Mass. 



III. Sent on from Lunenburgh, Mass. 



Moisture at 100° C, 

 Nitrogen, 



53-55. 



I. Sulphate of potash, sent on from Townsend, Mass. 



II. Muriate of potash, sent on from Westford, Mass. 



III. Muriate of potash, sent on from Barre, Mass. 



Per Cent. 

 I. II. III. 



Moisture at 100° C, 2.26 .75 .45 



Potassium oxide, 50.35 49.90 51.60 



56-57. 



I. Muck, sent on from Harris, Mass. 



II. Dry peat, sent on from Amherst Mass. 



Moisture at 100" C, 

 Nitrogen, 



58-59. 



I. Brewery refuse, sent on from Lowell, Mass 



II. Oil meal, sent on from Ashfield, Mass. 



Moisture at 100° C. 

 Phosphoric acid. 

 Potassium oxide. 

 Nitrogen, 



*Not determined. 



