316 Annual Report of the Consulting Chemist for 1879. 
I will only give one more instance of a manure which was 
lound on analysis to be worth scarcely one-half the price at which 
it was sold. The following is the composition of a mangold- 
manure, cost 11. per ton : — 
Moisture 17 "45 
*Organic matter and water of combination .. .. 26 '39 
Monobasic phosphate of lime 4 • 93 
(Equal to tribasic phosphate ren-) 
dercd soluble by acid) .. •• j ^ ^ 
Insoluble phosi^hates 6 "64 
Sulphate of lime, &c 27-90 
Insoluble siliceous matter 16 "69 
100-00 
* Containing nitrogen '55 
Equal to ammonia -67 
The price charged for this manure, 11. a ton, is quite out of 
proportion to its real value, which scarcely amounted to 3/. \Qs. 
a ton. The gentleman for whom I made this analysis wrote to 
me as follows : " I am very pleased I sent you the mangold- 
manure for analysis ; it tells me of the great importance attached 
to the same, and ten times repays for the fee charged." 
Composition of Soot, 
Soot, as is well known, is a manure which is principally used 
as a top-dressing for cereal crops. Its fertilising properties 
depend entirely upon the sulphate of ammonia which different 
samples contain in very variable proportions, as will be seen 
by the subjoined analyses : — 
Nc 
1. 1. 
No. 2. 
3- 
68 .. 
.. 6' 
11 
'Organic (carbonaceous) matter and 
40- 
17 .. 
.. 70' 
•45 
Oxides of iron and alumina . . 
4- 
39 ,. 
.. 4' 
■05 
10- 
91 .. 
6- 
99 
Insoluble siliceous matter 
40- 
85 .. 
.. 12 
•40 
100- 
00 
100' 
•00 
* Containing nitrogen 
2 
•3.5 ,. 
3 
■63 
Equal to ammonia 
2 
•85 .. 
4' 
■40 
Equal to sulphate of ammonia 
11 
•08 .. 
.. 17' 
11 
, third sample of soot I found :- 
■04 
6' 
■12 
Equal to sulphate of ammonia 
,, 23' 
■76 
