344 TRANSACTIONS OP THE AMERICAN INSTITUTE. 



Parts. 



Water 93.200 



Urea 3.210 



Sulphate of potassa 0.37 1 



Sulphate of soda 0.31 6 



Phosphate of soda 0.294 



Common salt 0.445 



Phosphate of ammonia 0.165 



Muriate of ammonia O.IGO 



Lactate of ammonia 1 



Animal matter j- 1.714 



Inseparable urea J 



Earthy phosphate 0.100 



Uric acid 0.099 



Mucous matter 0.032 



Silica 0.003 



100.000 



By inspecting the above table it will be observed that there is scarcely 

 a single ingredient which is not a direct food for vegetable existence, in it 

 may be detected the ammoniacal salts of the barn yard, phosphate of lime 

 and an abundance of animal matters readily decomposed. 



The urine of the horse is rich in vegetable matters, its composition is as 

 follows : 



Parts. 



Water and mucous matter 93.0 



Urea 1.7 



Carbonate of soda 1.8 



Carbonate of lime 0.8 



Muriate of potassa 1.7 



Benzoate of soda 1.0 



100.0 



The following ^re the matters contained in that of the cow: 



' Parta. 



Carbonates of potassa and ammonia 3.0 



Water 75.0 



Sulphate of potassa 7.0 



Urea 5.0 



Muriate of ammonia 16.0 



Phosphate of lime 4.0 



100.0 



The ammoniacal salts of all urine have a stimulating power, which has 

 a wonderful eifect in hastening the advancement of vegetation. How this 

 ammonia is generated in rain water, the importance of the fact and its 

 utility, and the uses of carbonic acid gas in the air, are matters that so 

 nearly resemble living processes in plants and animals that our knowl- 

 edge only permits us to make the statement. 



The application artificially of water to land in large quantities is a 

 thoroughly understood subject, and its surprising eflfects are recognized 

 and marked in all parts of the universe known as strictly agricultural, and 



