110 AGPJCULTUEAL EXPERIMENT STATION. [Jan. 



Muriate of Potash, 



[I. Sent on from Northampton, Mass. II. Sent on from Williamsburg, Mass. 

 III. Sent on from South Deerfield, Mass.] 



The large amount of moisture in the last sample explains 

 somewhat the lower percentage of potassium oxide. The prin- 

 cipal admixture of salines in this brand of potash compounds 

 consists of common salt, usually from 14 to 18 per cent. 



Muriate of Potash. 



[I. Sent on from Fall River, Mass. II. Sent on from Amherst, Mass.] 



Moisture at 100° C, ..... 

 Potassium oxide (4i cents per pouu'l), 

 Sodium oxide, 



Valuation per 2,000 lbs., . 



Sulj^hate of Potash. 



[Sent on for examination, Amherst, Mass.] 



Moisture at 100° C, . 



Potassium oxide (5| cents per pound), 



Sodium oxide, 



Sulphuric acid (5^ cents per pound), 



Clilorine, 



Insoluble matter, .... 



0.80 



47.86 



'l.68 



45.06 



0.66 



0.60 



Valuation per ton of 2,000 lbs., 



)2 65 



