106 AGRICULTURAL EXPERIMENT STATION. [Jan. 



These articles are evidently waste materials from some 

 potash industry. No. I. represents a value of from $36 to 

 $37 per ton ; it contains some potassium sulphide, and ought 

 to be exposed to the air, previous to its application, to pre- 

 vent injurious influences on the young growth. No. II. con- 

 tains a considerable amount of carbonates, and is better fitted 

 for direct use as a potash source ; it is worth from $11 to 

 $12 per ton. 



Muriate of Potas^h. 



[Sent on for examination by Bolton Farmers' and Meclianics' Association, Bolton, 



Mass.] 



Per cent. 



63 



51.33 



Moisture at 100° C, 

 Potassium oxide, 



Valuation per ton, at current rates, . 



$43 63 



Muriate of Potash, 



[Used at Experiment Station, 1885.] 



Moisture at 100° C, 

 Potassium oxide, 



Per cent. 



.47 

 49.80 



Valuation per 2,000 lbs., 



t2 33 



Potash Salts. 



[I. Muriate of potash, sent on from Fall River, Mass.] 

 [II. Muriate of potash, from H. L. Phelps, Southampton, Mass.] 



