290 AGRICULTURAL EXPERIMENT STATION. [Jan. 



5. Analyses, etc. — Continued. 



Wool Waste from Factories. 



[I., shoddy mill waste, sent on from Lawrence, Mass. ; II., wool waste, sent on from 

 Spencer, Mass.; III., wool refuse, sent on from Gilbertville, Mass.] 



The best use which can be made of this class of refuse 

 materials is to incorporate them into the barn-yard manure ; 

 they are essentially a nitrogenous source of plant food. 

 Their commercial manurial value depends on their percent- 

 age of nitrogen. From seven to eight cents per pound of the 

 latter is a fair basis of valuation. 



Cotton Waste. 



[Sent on from Fall River, Mass.] 



Per Cent. 



Moisture at 100° C, 5.63 



Ash, 60.68 



Potassium oxide, 0.66 



Phosphoric acid, . . . . . . . . . . 0.26 



Nitrogen, 0.96 



Insoluble matter, 55.20 



