Moisture at 100° C, 



Nitrogen, 



Ash, 



Potassium oxide. 



Phosphoric acid, 



Calcium oxide, 



1934-1938. 



I and II. 

 Ill, IV and V. 



Moisture at 100° C. 



Nitrogen, 



Ash, 



Potassium oxide. 



Phosphoric acid, 



Calcium oxide, 



*Not determined. 



Received from North Easton, Mass. 

 Received from Foxboro, Mass. 



