152 MANURE. 



sence and other causes, to omit sixty -five days in a year, the 

 contribution to this domestic savings bank, the deposits will 

 amount, annually, to 3682 pints of urine, and 1650 pounds 

 of solid excrements, containing 10 lbs. of chlorine, 42 lbs. 

 of salts, 176 lbs. dry organic matter. In the last there are 

 38 pounds of nitrogen ; this is equal to forming 46 lbs. of pure 

 ammonia, or 119 lbs. of carbonate of ammonia of the shops. 

 Hog-manure, in its characters, approaches night-soil suf- 

 ficiently, to be ranked with it for the present purpose. It is 

 the manure of fattening swine only which is to be classed 

 with night-soil. The estray and running animals produce 

 only a " cold " manure of little value. The manure of the 

 penned animal is always combined with his liquid evacuation. 

 This, whose value is stated (247), gives hog-manure a value 

 which places it with night-soil. 



Boussingault found in recent hog-dung — water 81, nitro- 

 gen, 0.63, in one hundred parts, nearly as much as in horse- 

 dung, and from the experiments of Schwerts, hog-dung ap- 

 pears superior to that of the cow. 



Sheep-dung may be placed with night soil and hog-manure. 

 Sheep may be said to digest better than cattle. They cut 

 their food finer, and chew it better ; they void thus less veg- 

 etable fibre. Their excrement is more converted into geine. 

 Ted on hay alone, their excrement is composed of: 



Water, 67.9 



Bilious and extractive matter, . . . .1.7 



Humus with slime, ...... 12 8 



Hay and vegetable matter, .... 8.0 



Silica, 6.0 



Carbonate and phosphate of lime, ; . . 2.0 

 Carbonate, sulphate, and muriate of soda, . . 1 .6 



100.0 



Sjfrengeh 



