MANURES AND FERTILIZERS. 



131 



the bodies of the animals, or is taken away in the producia 

 sold. Rich feeding, therefore, has a beneficial influence in 

 two directions, larger yields of products being obtained, 

 and a better quality of manure being produced. 



COMPOSITION, AMOUNT, AND VAL.UE OF MANURE 



Produced t»y DiflPerent Kinds of Farm Animals. 



(Results of experiments conducted at Cornell University Experiment 

 Station.) 



QUANTITIES OF NITROGEN AND ASH CONSTITU- 



cnts Voided by Animals or Obtained in Animal 

 Products. (Lawes and Gilbert.) 



* Valuing nitrogen at 15 cents, pnospnoric acid at 6 cents, and potasU 

 at 4i cents per pound (see page 136). 



