024 
Anahjses of Ashes of Plants. 
Analysis of the ash of the grain : — 
Removed from an Acre. 
lbs. 
0 
Phosphoric Acid . . . 
45" 73 
13 
Sulphuric Acid . . . 
. 0-3-2 
0 
Carbonic Acid . 
. none. 
0 
3 
Peroxide of Iron . 
. 2-04 
. 0 
9 
1 
Chloride of Sodium ', , 
0-27 
0 
•29 
trace of peroxide of manganese.* 
Spkcimen No. 31. — Hopeton Wheat. 
From the Mev. A. Huxtable. 
[^Soil, composed of the detritus of flints and chalk (?); subsoil, hard chalk ; 
does not need draining. The land was a coppice; it was broken up 
two years ago, and planted with Dale's hybrid turnips raised by 
artificial guano; the turnips eaten with sheep. Sown broadcast, 
March 20, 1S45; stood thick and upright, but was mildewed all in 
one day ; 3 weeks before harvest, a black shade suddenly came over 
it; reaped; somewhat injured by damp before thatched. Estimated 
yield 40 bushels an acre ; grain bad quality, thin, 56 lbs. to the 
bushel.] 
Specific gravity of the grain 
Per centage of water and ash : — 
Water. Asli. 
11-5 . . 1-63 
Analysis of the ash of the grain : — 
Xsh calculated 
oil tlrv substance. 
"l't)4 
Silica .... 
Phosphoric Acid . 
Sulphuric Acid . 
Carbonic Acid . 
Lime . . . i 
INIagnesia . . . 
Peroxide of Iron . 
Potash .... 
Siida .... 
Chloride of Sodium 
Uemoveii from an Acre. 
lbs. 
OlS. 
4-13 
. . 1 
45-30 
. . 16 
0-59 
. . 0 
none. 
1-83 
. . 0 
ioA 
12-43 
. . 4 
8i« 
1-76 
. . 0 
lOfi 
26-92 
. . 9 
13 
6-08 
2 
0-64 
'. . 0 
3t^ 
99-98 
36 
7^ 
" We detected this substance both in Mr. Huxtable's and in some of Mr. Morton's 
specimens, but not in nur own, or those from Sir John Johnstone: it was never in sufli- 
cient quantity to enable us.to estimate it, and is evidently only an accidental ingredient, 
and of little importance, as regards wheat at least. 
