osition of the whole ash:--

Soluble in water, 27.55 per cent:--
Soluble silica 4.25
Phosphate of lime 5.35
Lime 1.10
Magnesia 0.20
Potash 10.26
Soda 0.92
Chloride of sodium 0.54
Sulphuric acid 0.22
Carbonic acid and loss 4.71

Insoluble in water, 72.45 per cent:--
Soluble silica 17.34
Insoluble silicious matter 10.04
Oxide of iron and alumina with phosphates 8.47
(Containing phosphoric acid, 3.18 per cent.)
(Equal to bone-earth, 6.88 per cent.)
Lime 20.21
Magnesia 2.56
Potash 1.78
Soda 0.38
Sulphuric acid 1.27
Carbonic acid and loss 10.40
------
100.00
-------

Composition of rotten dung, six months old, is as
follows:--

Water 75.42
* Soluble organic matter 3.71
Soluble inorganic matter 1.47
+ Insoluble organic matter 12.82
Insoluble inorganic matter 6.58
------
100.00
------

* Containing nitrogen .297
Equal to ammonia .360
+ Containing nitrogen .309
Equal to ammonia .375
Total amount of nitrogen .606
Equal to ammonia .735
Ammonia in a volatile state