174 



Chlorine, 272 272 272 



Sulphuric acid, 405 3S8 33^ 



Phosphoric acid, 70 26 46 



Acetic acid, .. 1 20 



Sulphuretted Hydrogen, .. 1 30- 



Insoluble Phosphates and Carbonate,. .. 180 150 



Water, , .... 92,624 95,442 93,481 



100,000 100,000 100,000 



By this valuable table, it will bo seen that the ammonia is wonder- 

 fully increased by rain water, also that the lactic acid and chlorine, pot- 

 ash and soda remain unchanged by rain or fermentation. 



Gypsum has been used and strongly recommended as a means of 

 fixing ammonia, it is now discovered that rain water has a great ten- 

 dency towards the same object and exercises a similar effect on manure. 

 In dry weather ammoniacal gases are evolved from the earth and as- 

 cend into the atmosphere, where they are condensed by cold, and being 

 absorbed by the mists and clouds, are carried to the earth in rain and 

 dew ; sometimes the quantity of ammonia in rain water is so great that 

 it is destructive to vegetation, as in the case of the potato blight, &c. 



During the severity of an American winter, manure will freeze in the- 

 house or in the field. In a properly constructed heap, the damage it 

 receives from rain, if any, is certainly very trifling, whilst the advantage 

 of having it in the field, on the very spot you require it, and properly 

 mixed into the bargain, is certainly a matter of the highest importance. 



Many farmers have their stables and cow-houses so arranged, that 

 the manure is not disturbed until it is carted to the field in the rpring;, 

 this practice is better than allowing it to remain tossed about the farm 

 yard, but it is not so good as careful heaping in the field, and covering 

 with muck, as this absorbs the gases and juices and becomes as valua- 

 ble as any ingredient of the heap. 



From analysis made by Boussingault, at Bechelbronn, the excretions 

 of the horse, cow, and hog were found to consist of. 



Horse. Cow. Hog. 



Carbon, 9.19 5.39 6.97 



Hydrogen, 1.20 0.64 0.86: 



Oxygen, 8.66 4.80 5.86. 



