MANURE. 



149 



as determined by Johnston, in two samples, is as fol- 

 lows : 



From oow-ioDf; washed Fromyarl-dueg watered 

 by rain. with cow's urine. 



268.80 



518.40 



These results speak for themselves. They show rills of 

 wealth gushing from the farmer's manure, which no prudent 

 man will allow to run to waste. It is the concentrated food, 

 organic and inorganic, of plants, all which they need. 



205. Human excrement has been analyzed by Berzelius. 



In its pure state, its composition may be thus stated : 



Water, 75.3 



Geine, 23.5 



Salts, 1.2 



Nearly three-fourths of the salts are composed of carbon- 

 ate, muriate and sulphate of soda, the remainder is composed 

 of phosphates of lime and magnesia; the latter is particu- 

 larly abundant in feces. The average quantity of nitrogen is 



