Moisture at ioo° C. 

 Potassium oxide, 

 Phosphoric acid, 

 Calcium oxide, 

 Insoluble matter, 



REFUSE ASHES. 



1848-1850. I. Received from Springfield, Mass. 

 II. Received from Boston, Mass. 

 III. Received from Springfield, Mass. 



Moisture at 100° C, 

 Potassium oxide. 

 Phosphoric acid. 

 Calcium oxide, 

 Insoluble matter. 



NITRATE OF SODA. 



1851-1854. I. Received from Seekonk, Mass. 



II. Received from Ashley Falls, Mass. 



III. Received from North Amherst, Mass. 



IV. Received from Whately, Mass. 



Moisture at 100° C, 

 Nitrogen, 



1855-1858. I. Received from Amherst, Mass. 

 II and III. Received from Dighton, Mass. 



IV. Received from Bradstreet, Mass. 



Moisture at 100° C, 

 Nitrogen, 



