Analyses of the Mineral Ingredients of the Hop. 213 
The ashes gave the following results in the hundred parts: — 
Ashes of the Bine of the Hop. 
Silica ...... 4-64 
Chloride of Sodium (common salt) . . . 4'95 
Chloride of Potassium .... 7-38 
Potash ...... 18'62 
Lime . . . . . . 2959 
Magnesia . . . . . . 3'15 
Sulphuric Acid . . . . . 2"63 
Phosphoric Acid ..... 5-22 
Phosphate of Iron ..... 0-3I 
Carlxjnic Acid ..... 23'51 
100-00 
4. — Composition and per centage of the Ashes separated from the 
Carbonic Acid. 
The carbonic acid combined with the lime, &c. in the ashes, 
was produced during the burning of the plant, by the oxidation 
of the carbon of the vegetable matter. 
It is therefore not a mineral ingredient of the soil ; and in order 
to arrive at the real per centage of inorganic matter, it is neces- 
sary to withdraw the carbonic acid from the foregoing tables. 
This has been done in the following tables : — 
Table 1.— Quantity per Cent, of Mineral Ingredients in theHop, Leaves of Hop, 
and Bine, dried at the Temperature of Boiling Water. 
Hop. Leaves. Bine, 
Per Cent. . . 9 87 13 6 3-74 
Tablb 2. — Composition in One Hundred Parts of the Inorganic Matter. 
Hop. 
Leaves. 
Bine. 
Silica .... 
21 
50 
12 
14 
6 
07 
Chloride of Sodium 
7 
24 
9 
49 
6 
47 
Chloride of Potassium . 
1 
67 
9 
64 
Soda .... 
. 
6 
'39 
Potash .... 
25 
18 
14 
95 
24 
35 
Lime .... 
15 
98 
49 
67 
38 
73 
Magnesia 
5 
77 
2 
39 
4 
10 
Sulphuric Acid 
5- 
41 
5 
04 
3 
44 
Phosphoric Acid . , 
9- 
80 
2 
42 
6 
80 
Phosphate of Iron 
7 
45 
3 
51 
0 
40 
100- 
00 
100 
00 
100 
00 
5. — Quantity of inorganic Matter taken from the Land by four 
Hills of Farnham Hops. 
In order to obtain practical benefit from the foregoing ana- 
lyses, it will be necessary, in the next place, to ascertain the whole 
amount of inorganic matter removed by the four hills of hops, and 
likewise the amounts of the separate ingredients. 
The following table gives us the actual weight, in grains Troy, 
