154
APPENDIX.
In these analyses the composition of the various organic sub-stances is shown, quite independently of the number of atoms,or proportions of their elements which they contain. The abovenumbers show the quantity of each element in 10000 parts ofthe compound ; the number of equivalents is easily calculated jfrom such analyses.
C.—INORGANIC CONSTITUENTS OF PLANTS.
100000 parts of dry Wheat contain 1177 parts of inorganicmatter ; the same quantity of Wheat straw contains 3518 partsof earthy matters. These consist of the following substances .
Potash ....
GRAIN.
225
STRAW.
20
Soda .....
240
29
Lime ....
96
240
Magnesia
690
32
Alumina . . .
26
90
Silica ....
400
2870
Sulphuric acid
50
37
Phosphoric acid
40
170
Chlorine . . .
]0
30
1777
3518—Sprengel.
100000 parts of dry Barley contain 2349,
and 100000 parts of
straw 5242, parts of inorganic matter, consisting of :—
GRAIN-
STRAW-
Potash ....
278
180
Soda . . . . .
290
48
Lime ....
106
554
Magnesia . . .
180
76
Oxide of Iron .
trace
14
Oxide of Manganese
—
20
Alumina ....
25
146
Silica . . .
1182
3856
Sulphuric acid .
59
118
Phosphoric acid .
210
160
Chlorine
19
70
2349
5242—Sprengel