11 



frequently mixed with the hulls when burned. An article which 

 represents a high money value like the above material ought to be 

 bought ouly on analysis. 



399. FRESH HEN MANURE. 



Sent on from Townshend, Mass. 



PER CENT. 



Moisture at 100« C, 45.73 



Phosphoric acid, . 6 cts. 0.47 



Potassium oxide, 4i cts. 0.18 



Calciiyn oxide, 0.97 



Nitrogen total, 17 cts. 0.79 



Insoluble matter, sand, etc., 39.32 



Valuation per 2000 lbs., $3.42 

 This sample of fresh hen manure came from the same party who 

 sent on sample 387, Bulletin No. 20. It was inferior in quality as 

 compared with the first material ; for it contained for the same 

 amount of organic matter, about twice as much worthless earthy mat- 

 ter. In a dry state, corresponding with the first sample, 8 per cent, 

 of moisture, it would be worth only one-half the money, i. e. about 

 five dollars per ton. 



GERMAN HIGH GRADE SUPERPHOSPHATE. 



400. Sent on from New York city, N. Y., by a Boston manu- 

 facturer of Fertilizers. 



401. Sent on from Boston, Mass. 



Moisture at lOO'' C, 

 Total phosphoric acid. 

 Soluble " " 



Reverted " "• 



Insoluble " " 



Insoluble matter. 



Valuation per 2000 pounds, $78.47 $67.67 

 The material serves for the manufacture of high grades of " For- 

 mula Fertilizers.'" The amount of sulphuric acid present in either 

 sample did not exceed 3.5 per cent. This fact shows that the prod- 

 uct is obtained by a different process than our ordinary superphos- 

 phates ; it is most likely the isolated soluble portion of the latter, 

 evaporated after its separation from the insoluble sulphate of lime, 

 etc. 



402. DRIED BLOOD. 

 Sent on for examination. 



PER CENT. 



Moisture at 100° C, 11.99 



Nitrogen, 13.55 



Valuation per 2000 lbs., $46.07 



