1891.] 



PUBLIC DOCUMENT — No. 33. 



269 



5. Analyses, etc. — Continued. 



Buckioheat Hulls. 

 [Sent on by E. L. Smith, South Schodack, N. Y.] 



Moisture at 100= C , 

 Calcium oxide, 

 Magnesium oxicle, 

 Ferric oxide, . 

 Potassium oxide, 

 Phosphoric acid, 

 Xitrogen, 

 Insoluble matter. 



Per Cent. 



11.900 

 0.247 

 0.236 

 0.020 

 0.521 

 0.073 

 0.490 

 0.066 



Sea Weed. 



[Sent on by D. C. Potter, Fairhaven, Mass.] 



Per Cent. 



Moisture at 100--' C, 16.260 



Calcium oxide, 2.061 



Magnesium oxide, ......... 1.175 



Sodium oxide, 3.529 



Potassium oxide, 0.785 



Phosphoric acid, 0.191 



Nitrogen, 4.250 



Insoluble matter, 5.525 



Residuum from Soft Coal. 

 [Sent on by B. N. Farren, Montague City, Mass.] 



Moisture at 100° C, 

 Calcium oxide. 

 Magnesium oxide, 

 Ferric oxide, . 

 Aluminic oxide, . 

 Potassium oxide, . 

 Phosphoric acid, . 

 Insoluble matter (befor 



e calcination) , 



Insoluble matter (after calcination), 



Per Cent. 

 2.63 



1.38 

 0.45 

 6.02 

 2.71 

 0.20 

 0.47 

 88.09 

 72.38 



