Annual Report for 1893 of the Consulting Chemist. 811 
character nor giving a different analysis from that of Boiled Bones. 
The manure has contained no “ soluble phosphate,” and has not 
been dissolved at all with oil of vitriol, as Pure Dissolved Bones 
should be. Yet, by offering it under the misleading name of “Dis- 
solved Bones” farmers are led to believe that they are buying a 
quickly-acting manure instead of a slowly-acting one. 
The following are analyses of two such samples : — 
Moisture .... 
. 10-17 
11-96 
Organic matter 
. 12-52 
13-83 
Phosphate of lime . 
. Gl-25 
GO-87 
Carbonate of lime, &c. 
. 15-21 
1249 
Sand .... 
•85 
•85 
100-00 
10000 
1 containing nitrogen . 
, 
. 1-78 
1-77 
equal to ammonia 
2-1G 
2-14 
Basic Slag . — This material, as is known, varies considerably in 
quality according to the district in which it is manufactured, and 
also in fineness of grinding. The following results will exemplify 
these variations : — 
A 
B 
C 
D 
1 Phosphoric acid 
. 20-18 
1735 
12-73 
10-79 
Lime .... 
. 37 91 
37-GC 
40-41 
38-37 
Oxide of iron and alumina 
. 32-14 
33-48 
33-78 
39G9 
Insoluble siliceous matter 
. 9-77 
11-51 
13-08 
11-15 
10000 
100-00 
10000 
100 00 
1 equal to tribasic phosphate 
of lime 
44 05 
37-88 
27-79 
23-55 
percentage of fineness 
96 
73 
39 
74 
A cost 37s. Qd. per ton delivered. 
B cost 45s. per ton delivered. 
C cost 40s. per ton delivered. 
D cost 43s. Qd. per ton delivered and was a Scotch basic slag. 
Slag . — It is well here to repeat the warning given in the 
Quarterly Reports, and to point out that a material having no 
manurial properties and only fit for road-making has been offered 
to farmers, as a manure, at the price of 25 s. to 30s. per ton. Farmers 
have in some instances bought it, thinking that they were purchasing 
“ Basic ” Slag. 
The following are analyses of this material, which has had, it 
seems, some sale in the West of England : — 
Water and loss on heating 
A 
. 9-10 
B 
19-62 
Oxide of iron, alumina, &c. 
. 8-05 
18-51 
Lime ..... 
none 
4-20 
Phosphoric acid 
. none 
•32 
Insoluble siliceous matter 
. 82-85 
57-35 
100-00 
100-00 
