Value of Artificial Manures. 
539 
Table II. For calculating Money Yaliic of Manures. 
Ammonia in Sulphate 
, , in Muriate 
, , as supplied by Bones 
, , , , Dried Blood 
, , , , Peruvian Guano . 
, , , , Nitrate of Potash 
, , , , Nitrate of Soda . 
Biphosphate of Lime 
Soluble neutral Phosphate of Lime 
Phosphate of Lime in Coprolite 
, , in Bone Ash 
, , in Animal Charcoal 
, , in Bones 
, , in Peruvian Guano 
Potash in Sulphate 
, , in Nitrate 
, , in American Potashes 
Magnesia in Sulphate 
Soda in Sulphate 
, , supplied by Common Salt 
Organic Matter, nitrogenous 
, , non-nitrogenous 
Alkaline Salts 
Sulphate of Lime 
, , of Soda (dry) , 
, , of Potash 
, , of Magnesia (dry) 
Sulphuric Acid (real) in Sulphate of Lime . . 
Adopted Averages. 
Nitrogen 
Ammonia 
Phosphate of Lime 
Soluble Phosphate of Lime 
Potash 
Per lb. 
s. d. 
0 7-^ 
0 4A 
0 lO^S 
0 5 
0 3J 
0 Qi 
0 0^, 
0 0^ 
.3* 
0 02?, 
0 01 
0 ll, 
0 O'^o" 
TiJS 
0 6 
0 Of 
0 3^ 
0 3f, 
Per Cent, 
per Ton* 
Per Ton. 
s. 
d. 
£. 
s. 
d. 
13 
7 
G8 
0 
0 
17 
11 
89 
12 
0 
8 
llj 
45 
9 
0 
11 
0 
.^5 
0 
0 
8 
9 
44 
2 
0 
28 
0 
140 
0 
0 
17 
9 
89 
1 
0 
9 
48 
3 
6 
G 
32 
13 
4 
1 
3 
G 
5 
0 
1 
&k 
8 
11 
5 
1 
7| 
8 
2 
2 
1 
2 
5 
14 
4 
1 
1 
5 
11 
0 
6 
2 
30 
16 
0 
9 
2 
45 
14 
0 
14 
6 
72 
16 
0 
6 
4 
31 
14 
0 
2 
9 
13 
14 
9 
0 
4i 
^•2 
1 
17 
9 
0 
1 
0 
0 
0 
H 
0 
10 
0 
0 
2Tli 
1 
0 
0 
0 
1 
0 
0 
1 
n 
5 
15 
0 
3 
4 
16 
13 
0 
2 
3 
11 
7 
0 
0 
2 
11 
6 
13 
6 
68 
0 
0 
11 
2 
56 
0 
0 
1 
5 
7 
0 
0 
6 
6> 
32 
13 
4 
6 
2 
30 
16 
0 
It will be seen that ammonia, or its equivalent in nitrogen, 
varies in price from Ay^jd. per lb. in Peruvian guano, to nearly 
lOid. in nitrate of soda. 
I do not include nitrate of potash, which has always too high 
a price for manure, and is at this moment excessively dear. 
* The column headed " Per Cent, per Ton " is perhaps somewhat difficult of 
comprehension. It is, however, a method of valuation familiar enough to manu- 
facturers and others engaged in the purchase and sale of commercial articles. 
Thus, to give an illustratiou, soda ash (impure carbonate of soda) is sold at about 
2^d. per cent, per act., that is to say, a hundredweight of it is worth 2 jrf. for every 
per cent, of real soda in it. If then the soda ash contains 50 per cent, real soda, 
one hundredweight of it will be worth fifty times 2^d., or 8s. 4^d. In the table 
the price per cent, refers to a ton ; so if a manure contains 20 per cent, of soluble 
phosphate, one ton of the manure will be worth, for that ingredient, Gs. a^d. 
multiplied by 20, or dl. lOs. lOrf. The application of this method is seen in the 
text at page 542. 
