6 



531'537. I- Received from North Hadley, Mass. 



II. Received from Sunderlaud, Mass. 



III. Received from Leeds, Mass. 



IV. Received from Sunderland, INIass. 



Moisture at lOO'' C, 

 Potassium oxide, 

 Phosphoric acid. 

 Calcium oxide, 

 Insoluble matter, 



538-542. I. Received from Sunderland, Mass. 



II. Received from Sunderland, Mass. 



III. Received from Sunderland, Mass. 



IV. Received from North Amherst, Mass. 

 V. Received from Amherst, Mass. 



Per Cent. 

 I. 



Moisture at 100'^ C, 15.68 



Potassium oxide, 4.70 



Phosphoric acid, 0.82 



Calcium oxide, 32.35 



Insoluble matter, 10.32 



An examination of the results of the above stated forty-eight sam- 

 ples of wood ashes recently sent on for analysis at the station shows 

 the following variations in their composition : 



Number of samples. 



INIoisture from 1 to 3 per cent. 5 



'' •' 4 to 6 " 2 



'• '' 6 to 10 " 12 



'' '' 10 to 15 " 18 



" " 15 to 20 " _ 11 



Potassium oxide above 8 per cent. 2 



" " from 7 to 8 " 1 



*' " " 6 to 7 '' 6 



*' " '• 5 to 6 " 16 



•" " " 4 to 5 " l.s 



a " " o to 4 '• 4 



*' " below 3 " 1 



Phosphoric acid above 2 '• 3 



" " from 1 to 2 " 34 



" " below 1 " U 



