Analyses of Ashes of Plants, 
645 
Specimen No. 68. — Hopeton Oats. 
From the Rev. A. Huxtable. 
\^Soil, thin, calcareous; subsoil, chalk; geological formation, the upper 
chalk ; naturally dry ; two years in tillage. The two previous crops 
were swedes, raised by guano ; one-fourth of the bulbs and all the 
tops being fed oti' by sheep. Sown broadcast, IMiirch, 1845; crop 
was splendid; very fine straw; mown August, 1843. Estimated 
yield 56 bushels an acre ; good quality, 42 lbs. a bushel.] 
Per centage of water and ash in the grain : — 
Water. 
9-5 
As!i. 
2 '27 
Analysis of the ash of the grain : — 
Silica 
Phosphoric Acid 
Sulphuric Acid 
Carbonic Acid . 
Lime 
Magnesia 
Peroxide of Iron 
Potash . . . 
Soda 
Chloride of Sodium 
38 -48 
26-46 
MO 
3-54 
7-33 
0-49 
17-80 
3-84 
0-92 
99-96 
Ash calculated 
on dry substance, 
2-50 
Removed from an Acre, 
lbs. ozs. 
20 8 
14 1^ 
i'i4i|, 
3 14^ 
9 8 
2 0 ' 
0 7A 
53 3^ 
Specimen No. 69. — Pot.\to Oats. 
Obtained for seed from Messrs, Gibbs. 
Specific gravity of the grain 
Per centage of water and ash in the grain : — 
Water. Ash, 
10-5 . . 2-45 
1-191 
Ash calculated 
on dry substance 
2-73 
Analysis of the ash of the grain : — 
Silica 50-03 
Phosphoric Acid . . . . 18-87 
Sulphuric Acid .... 0-10 
Carbonic Acid .... none. 
Lime 1-31 
Magnesia 8-25 
Peroxide of Iron . . . . 0-27 
Potash 19-70 
Soda 1-35 
Chloride of Sodium . . . O 07 
Total 99-95 
