1893.] 



PUBLIC DOCUMENT — No. 33. 



285 



5. Analyses, etc. — Oonlmued. 



Muck. 



[I , surface layer, one and one-half to four and one-half feet deep ; II., under layer, 

 four to six feet below surface, sent on from West Bridgewater, Mass.] 



Soot. 



[Sent on from East "Walpole, Mass.] 



Moisture at 100° C'., 



Ash, 



Potassium oxide, . 



Calcium oxide. 



Magnesium oxide. 



Ferric and aluminic oxides, . 



Phosphoric acid, . 



Insoluble matter (befoi-e calcination), 



Insoluble matter (after calcination) , 



I'cr Cent. 



8.00 



88.98 



0.56 



3.50 



0.83 



2.01 



0.83 



82.52 



80.72 



Drainage from Manure Heajjs. 



[Sent on from Amherst, Mass.] 



Per Cent. 



Moisture at 100° C, 93.25 



Ash, 3,66 



Phosphoric acid, 0.24 



Potassium oxide, 0.88 



Total nitrogen, 0.98 



Nitrogen as ammonia, 0.65 



