357 
avaporatcd to dryness, left about 430 grain3 of dry matter; this 
consisted of 
Ammonia. 9.6 grains. 
Organic matter. 200.8 grains. 
Mineral matter (asb). 268.8 grains. 
The inorganic portion consisted of 
Alkaline Salts. 207.8 grains 
Phosphates of Lime and Magnesia, with a little 
Phosphate of Iron. 25.1 grains 
Carbonate of Lime. 18.2 grains. 
Carbonate of Magnesia and loss. 4.3 grains. 
Silica and a little Alumina. 13.4 grains. 
A second gallon of liquid, consisting of the drainings of farm-yard 
■dung, when watered with cows’ urine, was also analyzed ; this, when 
evaporated, left 617-J grains of dry matter, which consisted of 
Ammonia. 21.5 grains. 
Organic matter. 77.6 grains. 
Inorganic matter (ash). 518.4 grains. 
The mineral matter contained in this liquid consisted of 
Alkaline Salts. 420.4 grains. 
Phosphates of Lime and Magnesia. 44.5 grains. 
Carbonate of Lime. 31.1 grains. 
Carbonate of Magnesia and loss. 3.4 grains. 
Silica and a little Alumina. 19.0 grains. 
Proceedings of Ag. Chcm. Ass. of Scotland, p. 61. 
There are no phosphates in the urine of the cow, but it contains 
alkaline salts, besides most of the substances voided by the cow which 
are capable of producing ammonia. By referring to the table previously 
given, of the mineral matters found in different plants, we may under¬ 
stand how desirable it is that the liquid, as well as the solid portion of 
our manure, should be preserved. Various expedients have been resorted 
to with a view to effect this object. In older countries liquid manure is 
collected in tanks in some instances, and applied to the land in the liquid 
etate, or else thrown back on to the solid manure ; some have filtered 
it through charcoal, and the sulphates of lime, magnesia, zinc, or iron, 
have been added to the liquid to throw down the phosphates and soma 
