294 Annual Report of the Consulting Chemist for 1880. 
Composition of Two Inferior Artificial Manures. 
No. 1. 
No. 2. 
18-20 
.. 15 
96 
25-76 .. 
.. 35 
14 
Phosphate of lime 
.. 15-43 .. 
5 
74 
Oxide of iron and alumina .. 
.. 10-77 .. 
8 
71 
21-03 .. 
.. 15 
35 
Insoluble siliceous matter 
8-81 .. 
.. 19 
10 
100-00 
100 
00 
* Containing nitrogen 
1-89 . 
1 
GO 
Equal to ammonia 
2-20 . 
1 
94 
No 1 was described by the vendor as being made principally 
of dissolved bones and fish, " the ammonia being derived from 
guano with a little sulphate of ammonia, and the potash from 
sulphate of potash, and dried with fine bone meal, coloured with 
calcined extract of bone containing 5 per cent, of nitrogen." 
Price 81. per ton. This manure, it will be seen, contained only 
2^ per cent, of ammonia, 15^ per cent, of phosphate of lime, and 
no appreciable amount of potash. 8/. a ton, I need hardly say, 
is a most exorbitant price for a manure like No. 1, for it would 
be by no means cheap at 4?. 10s. a ton. No 2 was sold at bl. a 
ton, although it was scarcely worth half that price. 
Advantage op buying Artificial Manures by Analysis. 
A member of the Society sent me 7 samples of artificial 
manures, which, on analysis, showed the following compo- 
sition : 
Composition of Seven Samples of Artificial Manukes. 
No. 1. 
No. 2. 
No. 3. 
No. 4. 
No. 5. 
No 
. 6. 
No. 7. 
Moisture 
21-65 
22-40 
15-35 
14-20 
12-50 
12 
15 
14-40 
*Organic matter .. 
19-65 
17-95 
20-60 
19-60 
36-13 
34 
84 
15-22 
Mono-phosphate 
11-06 
13-42 
10-93 
9-51 
6-34 
10 
32 
13-16 
Tricalcic pliosphate 
(17'3n 
(21-02) 
(17-11) 
(14-90) 
(9-93) 
(16 
15) 
(2061) 
Insol. phosphate . . 
9-50' 
7-94 
10-04 
11-10 
14-25 
6 
90 
12-35 
tCalcio suli)hate, &c. 
31-26 
34-45 
35-94 
36-58 
23-48 
31 
H9 
39-27 
6-79 
3-84 
7-14 
9-01 
7-30 
3 
90 
5-60 
100-00 
100-00 
100-00 
100-00 
100-00 
100 
00 
100-00 
♦Containing N. 
1-58 
-71 
-93 
-84 
3-60 
4 
58 
1-41 
Equal to N H3 . . 
1-92 
•86 
1-13 
1-02 
4-37 
5 
56 
1-71 
flncluding nitrate ofl 
-30 
1-26 
2 
24 
