242 CULTURE OF BROOM-CORN IN THE UNITED STATES, 



2. Analysis of the sheaths of the broom-corn : 



Removed in a ton. 



lbs. 



Silica..... 40.20 28.903 



Earthy phosphates 15.00 10.785 



Lime 3.00 2.157 



Magnesia 3.24 2.329 



Potash 26.56 ...... 19.0&6 



Soda . 7.33 5.270 



Sulphuric acid 3.57 2.566 



Chlorine 1.72 1.236 



100.62 72.842 



3. Analysis of the ripe broom-corn brush, with the seeds : 



Removed from the soil in 

 a. ton of Brush and Seeda. 



lbs. 



Silex 32.50 ...... 11.960 



Earthy phosphates 36.15 13.303 



Lime 0.40 0.147 



Magnesia 0.10 0.036 



Potash 27.32 10.053 



Soda 2.37 0.870 



Chlorine 2.50 0.846 



Sulphuric acid undetermined 



101.14 37.215 



4. Composition of the ash of broom-corn seed : 



Carbonic acid not determined 



Silicic acid 41.975 



Sulphuric acid not determined 



Phosphoric acid 28,760 



Phosphate of peroxide of iron 0.525 



Lime 0.845 



Magnesia 3.010 



Potash 3.920 



Soda 7,247 



Chlorine 0.245 



Organic acids 4.200 



90,727 

 Proportions. 



Water 12.22 



Dry matter 87.78 



Ash 3.00 



Per-centage of ash calculated on the dry matter 3.417 



