464 BOAED OF AGRICULTURE. 



Havana Tobacco Stems. 



[Sent on by S. G. Hubbard, Hatfield, Mass.] 



Moisture at 100° C, 1105 



Dry matter 88.95 



Crude ash, 13.30 



Nitrogen in dry matter, 2.91 



One hundred parts of dry matter contained : — 



Potassium oxide, 3.76 



Sodium oxide, .20 



Calcium oxide, 4.15 



Magnesium oxide, 1 53 



Phosphoric acid, .60 



Sesquioxide iron, .16 



Valuation per ton of 2,000 lbs. for fertilizing purposes, . . $14 28 



The valuation is based on the prices of the past yeai 

 (1883) : it is safe to count one-tenth less at the prices of 

 the present year. 



Kentucky Tobacco Stems, Ground. 



Moisture at 100° C 12.18 



Dry matter, 87.82 



Crude ash (in organic matter), 15.00 



Nitrogen (in organic matter), 2.616 



Chlorine, 425 



Sulphur, . . .■ 275 



Potassium oxide (4i cents), 8.816 



Sodium oxide, . . .161 



Magnesium oxide, .• . . 1.395 



Calcium oxide, 3.720 



Phosphoric acid (6 cents), .726 



Insoluble matter, 1.618 



Valuation per 2,000 lbs., $17 78 



In this case the valuation is based upon prices current in 

 1884. Nitrogen has been valued at 18 cents per pound, 

 phosphoric acid at 6 cents, and potash, 4| cents. Both of 

 these refuse materials from the tobacco industry are quite 

 valuable for manurial purposes. 



