1893.] 



PUBLIC DOCUMENT — No. 33. 



285 



5. Analyses, etc. — Continued. 

 Much. 



[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 (before calcination). 



Insoluble matter (after calcination), 



I'er Cent. 



' 8.00 



88.98 



0.56 



3.50 



0.83 



2.01 



0.83 



82.52 



80.72 



Drainage from Manure Heaps. 



[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 



