MANURE. 175 



is in round numbers, 1 percent., while in the liquids 

 it averages 15, being in the cow 35, and in the 

 human 4*24 per cent., horse 6. 



250. All urine of course varies with the food of 

 the animal. White turnips give a weaker liquor than 

 Swedish. Green grass is still worse. Distillers' 

 grains are said to be better than either of these. 

 Doubtless the liquids of fattening kine is richer in 

 ammonia during this period, for it contains a part of 

 that nitrogen not carried away in milk. Whatever 

 may be the food, it is evident from the above state- 

 ments, that rivers of riches run away from farms, 

 from want of attention to saving that which ordina- 

 rily is allowed to be wasted. 



251. Each man evacuates annually, enough salts, 

 to manure an acre of land. Some form of geine 

 only is to be added to keep the land in heart, if the 

 farmer has but the heart to collect and use that which 

 many allow, like the flower unseen, " to waste its 

 fragrance on the desert air." 



252. But with all the farmer's care, with every 

 convenience for collecting and preserving these ani- 

 mal products, still the amount which can be so col- 

 lected, is often wholly inadequate to the wants of the 

 farmer of small means. All these accumulations 

 presuppose a goodly stock of animals on the farm. 



