Moisture at 100" C, 

 Potassium oxide, 

 Phosplioric acid, 

 Calcium oxide. 

 Nitrogen, 



809-811. I- Received from Hampden, Mass. 



^ II. " " Bridgewater, Mass. 



III. " " Amlierst, Mass. 



Moisture at 100° C, 



Potassium oxide, 



Phosphoric acid, 



Calcium oxide. 



Ferric and Aluminum oxide, 



Nitrogen, 



MUCKS. 



812-S14 



I., II. t and Ill.t Received from Southboro, Mass. 



Moisture at 100° C, 

 Potassium oxide, 

 Phosphoric acid. 

 Calcium oxide. 

 Nitrogen, 



815. 



Received from Amherst, JNIass. 



Moisture at 100° C., 

 Calcium oxide. 

 Insoluble matter. 



fUntlerlaying No. I. 

 ^Underlaying No. II. 



Per Cent. 



3.95 

 34.64 



8.11 



