Domestic Notices. 



151 



Urate of ammonia, 

 Oxalate of ammonia, 

 Oxalate of lime, 

 Phosphate of ammonia, . 

 Phosphate of ammonia and magnesia, 

 Sulphate of potash. 

 Sulphate of soda, . 

 Muriate of ammonia. 

 Phosphate of lime. 

 Clay and sand, 

 Undetemmied organic maWer, ( J of which is soluble in 

 water,) and water with traces of soluble salts of iron, 



9. 



10.6 

 7.0 

 6.0 

 2.6 

 5.5 

 3.8 

 4.2 



14.3 

 4.7 



32.3 



100. 



The following is the composition of my artificial guano, with an esti- 

 mate of the cost of each inccredient, as stated by my friend,jMr. A. A. 

 Hayes, a scientific and manufacturing chemist. The prices are estimat- 

 ed for crude products, as they can be made in large quantities : — 



Bone-ash, or ground bones. 

 Carbonate of ammonia. 

 Phosphate of soda. 

 Sulphate of magnesia, 

 Muriate of ammonia, 

 Sulphate of soda. 

 Sulphate of potash. 

 Nitrate of soda. 

 Nitrate of potash, 

 *Humate of potash, 

 fApocrenate of ammonia, &c.. 

 Oxide of manganese. 

 Bog-iron ore in powder. 

 Fine silex from peat bog, q. s. 



100 



$S 32 



In the cultivation of potatoes, a much larger proportion of sulphate of 

 magnesia may be introduced with advantage. For clover, a very large 

 addition of gypsum maybe made, either by mixing it directly with the 

 guano, or by spreading it on the soil, the latter being preferable, since it 

 will absorb the escaping ammonia. 



The apocrenate, crcnate, and humate of ammonia made by the addition 

 of carbonate of ammonia to swamp muck or peat, does not (in the large 

 way) require to be dissolved and filtered. It will be sufficient to mix 

 them in the state of moist paste. No ammonia can escape from its com- 

 bination with the peat or muck. 



The refuse bone-black of sugar refineries may be made into a paste 

 with sulphuric acid in excess, and then treated with a sufficiency of 

 crude potash or soda to take up the phosphoric acid set free by the sul- 

 phuric acid. This mixture may be at once added to the other ingredients 

 of the guano, leaving out the phosphate of soda and sulphate of potash 

 and gypsum, for these are now formed. 



* Sawdust and potash melted together in an iron pot. 



tPeat steeped in carbonate of ammonia, strained and evaporated to paste. 



