174 BOARD OF AGRICULTURE. 



Human Urine. 



Urea 3.01 



Uric acid 0.10 



Indeterminate animal matter, lactic acid, and lactate of ammonia, 1.71 



Mucus of the bladder 0.03 



Sulphate of potash 0.37 



Sulphate of soda 0.32 



Phosphate of soda 0.29 



Chloride of sodium 0.45 



Phosphate of ammonia 0.17 



Chlohydrate of ammonia 0.15 



Phosphate of lime and magnesia 0.10 



Silica a trace 



Water ♦ . . 93.30 



100.00 

 The Salts had the following. 



Carbonate of soda 29.4 



Chloride of sodium 23.5 



Sulphate of soda 11.8 



Ammoniaco magnesian phosphate 11.8 



Phosphate of lime 23.5 



100.0 



It will be seen that I have grouped the two materials, the 

 analysis of each of which is above given, under the common 

 head of night-soil. I am aware that they are generally sepa- 

 rated in treatises on the subject, and urine made to j)lay the 

 important part as distinct from feculant matter. I see no 

 reason why they should not both be included under the head 

 of night-soil, and the combination of the two be considered 

 as forming that material. It cannot be denied that the 

 quality of night-soil must depend, in a great degree, on the 

 quality and quantity of food consumed by those who furnish 

 the materials, as well as the care used not to mingle indis- 

 criminately other wastes with the material. An amusing 

 anecdote is related, by a French writer on the subject, of a 

 farmer who had purchased the produce of the cabinet of one 

 of the most celebrated restaurants of the Palais Royal in 

 Paris. Greatly encouraged by the success of his experiment, 

 as evidenced in his crops, and being desirous of going into the 

 business on a larger scale, he contracted for the monopoly of 

 the products of several of the military barracks of Paris. 

 The poor fellow was doomed to a bitter disappointment. The 



