112 AGRICULTURAL EXPERIMENT STATION. [Jan. 



Potassium oxide, 

 Nitrogen, . 

 Insoluble matter, 



Valuation per 2,000 lbs., 



Per cent. 



.82 

 3.13 

 4.28 



Wl 06 



Complete Fertilizer. 



[Sent on for examination by Farmers near Worcester, Mass.J 



Moisture at 100° C, . 

 Total phosphoric acid, 

 Soluble 



Reverted " " 



Insoluble " " 



Potassium oxide, 

 Nitrogen, . 

 Insoluble matter, 



Valuation per 2,000 lbs., 



Per cent. 



7.15 



14.00 



11.26 



2.38 



.36 



1.13 



2.56 



.83 



134 55 



Fertilizing Materials. 



[Sent on from Boston, Mass.] 



The materials are evidently mixtures of refuse from vari- 

 ous sources, and contain large quantities of insoluble mat- 

 ter. No. I. is worth from $7 to $8 per ton, and No. II. 

 from $2.50 to $3. 



