Composition of the Ash—
| Silica | 62.40 |
| Potash | 11.30 |
| Soda | 1.98 |
| Oxide of Iron | 1.17 |
| Lime | 4.63 |
| Magnesia | 3.84 |
| Oxide of Manganese | 2.13 |
| Phosphoric Acid | 10.49 |
| Sulphuric Acid | 1.89 |
| Chlorine | 0.03 |
| Loss | 0.14 |
| 100.00 |
No. XIX.
NIGHT SOIL.
Solid (Ash)—
| Earthy Phosphates and a trace of Sulphate of Lime | 100 |
| Sulphate of Soda and Potash, and Phosphate of Soda | 8 |
| Carbonate of Soda | 8 |
| Silica | 16 |
| Charcoal and Loss | 18 |
| 150 |
Urine
| Urea[AT] | 30.10 |
| Uric Acid | 1.00 |
| Sal Ammoniac[AT] | 1.50 |
| Lactic Acid, etc. | 17.14 |
| Mucus | .32 |
| Sulphate of Potash | 3.71 |
| Sulphate of Soda | 3.16 |
| Phosphate of Ammonia[AT] | 1.65 |
| Earthy Phosphates | 3.94 |
| Salt (Chloride of Sodium) | 4.45 |
| Silica | 0.03 |
| 67.00 | |
| Water | 933.00 |
| 1000.00 |