Analyses of the Ashes of Plants. 
147 
gan beans on the 14th, and the Heligoland on the 31st of the 
same month. 
The sandy soil is a silicious sand of the old red-sandstone ; 
deep, but poor. The crops under discussion were taken after a 
fallow, and were sown between the 17th and 22nd of April, 1847. 
A portion of the seed was reserved and analysed, in order that 
the produce might be compared with it. 
Peas. 
The first analyses are those of early white peas. 
Percentage of Water and Ash in three Specimens of Early White Peas. 
Water. Ash. 
No. I. The seed 13-60 ., 2-40 
No. 2. Produce on clay 15-40 .. 2-38 
No. 3. Produce oil silicious sand . . 13-60 .. 2*48 
Do. calculated 
on dry. 
.. 2-80 
.. 2-77 
.. 2-87 
The composition of the ash was as follows : — 
Composition in 100 p^arts of the Ash of Early White Peas. 
Silica . • . 
Phosphoric Acid 
Sulphuric Acid 
Carbonic Acid 
Lime 
Magnesia . 
Peroxide of Iron 
Potash . . 
Soda . . . 
Chloride of Sodium 
Chloride of Potassium 
Total . . . 
No. 1. 
The Seed. 
No. 2. 
Produce on 
Clay. 
No. 3. 
Produce on 
Silicious 
Sand. 
Mean. 
1-76 
1 
12 
1 
55 
1 
48 
38-05 
37 
93 
35 
66 
37 
21 
6-70 
4 
04 
7 
26 
6 
00 
0-9S 
1 
IG 
1 
95 
1 
36 
6-16 
7 
03 
6 
41 
6 
53 
7-03 
7 
33 
6 
61 
6 
99 
0-64 
0 
76 
21 
0 
87 
35-43 
40 
40 
39 
22 
38 
37 
0-44 
0 
21 
0 
22 
2-&1 
0- 
94 
100-00 
99- 
98 
9'J- 
07 
99 
97 
The total sulphur in 1000 grains of the undried specimens was 
found to be — 
Seed. Produce on Clay. Produce on Sand. 
3-217 .. 2-362 .. 2-159 
Percentage of Water and Ash in the Prolific Maple or Grey Peas. 
Water. Ash. Ash on dry. 
No.l.Seed 14-60 ,. 2-'24 •• 2-60 
No. 2. Produce on clay . .... lG-60 .. 2-40 .. 2*87 
No. 3. Produce on sand 15-40 .. 2-14 .. 2-56 
L 2 
