Value of Earth-Closet Manure. 
193 
passed once, twice, and three times through the closets. The 
earth appeared to be ordinary garden soil, containing a con- 
siderable proportion of clay. An analysis of it in its natural 
state yielded the following results : — 
Composition of air-dry sifted Earth for me in the Earth-Closet. 
Moisture 9'94 
*Organic matter and water of combination .. .. 8"86 
Oxide of iron and alumina 11'67 
Phosphoiic acid '\~t 
Carbonate of lime 2'01 
Magnesia .. .. l-iiO 
Alkalies and loss in analysis 1'22 
Insoluble siliceous matter (sand and clay) .. .. 64"83 
100-00 
* Containing nitrogen "28 
Equal to ammonia '34 
The preceding analysis gives a good representation of the 
composition of rich garden mould. 
The samples of the earth, after having been used once, twice, 
and three times, were not equally dry, as will be seen by the 
subjoined tabulated results, which represent the composition of 
tbe three samples of earth-manure in the condition in which they 
reached me. 
Composition of Three Samples of Earth-Closet Manure from West 
Riding Prison, Wakefield. 
No. 1. 
Earth once 
used. 
No. 2. 
Twice used. 
No. 3. 
Three times 
used. 
21 
■69 
11-81 
13-81 
'Organic matter and water of com-1 
7 
67 
10- 17 
10-53 
( ixide of iron and alumina 
12 
65 
12-43 
10 76 
Phosphoric acid 
19 
-39 
-44 
Carbonate of lime 
1 
76 
1-88 
1-84 
Alkalies and loss in analysis .. .. ) 
•06 
( -68 
•78 
2 
) -64 
•64 
Insoluble siliceous matter (clay audi 
sand) ( 
53 
98 
62-00 
61-20 
lUO 
•00 
100-00 
100-00 
29 
•37 
•44 
35 
•45 
•53 
All the samples were inoffensive in appearance, and free from 
disagreeable smell. 
As the penentage of moisture in the original earth and in 
VOL. VIII.— s. S. , O 
