1887.] 



PUBLIC DOCUMENT — No. 33. 



Ill 



Double Manure Salt. 



[Sent on from New York.] 

 [I. Crystallized double manure salt. II. Commercial double manure salt ] 



The first-aamed article consisted of large, clear, colorless 

 and well-developed crystals, which, in consequence of a loss of 

 water, turned gradually whitish on exposure to the air. The 

 second one consisted of a yellowish white powder, and repre- 

 sents the article for our markets. Both salines consist essen- 

 tially of sulphate of potash and sulphate of magnesia, and are 

 remarkably ff-ee from chloride (common salt, etc.). 



Fish Waste. 



[I. Sent on from Boston. II. Sent on from Gloucester. III. Sent on from Marslifield.] 



