FOODS WHICH MAKE EICII MANURE. 



45 



CHAPTER XII. 



FOODS WHICH MAKE RICH MANURE. 



The amount of nitrogen, phosphoric acid, and potash, contained 

 in different foods, has been accurately determined by many able 

 and reliable chemists. 



The following table was prepared by Dr. J. B. Lawes, of Roth- 

 amsted, England, and was first published in this country in the l 

 " Genesee Farmer," for May, 1860. Since then, it has been re- 

 peatedly published in nearly all the leading agricultural journals 

 of the world, and has given rise to much discussion. The follow- 

 ing is the table, with some recent additions : 



* The manure from a ton of undecorticated cotton-seed cake is worth $15.74; 

 that from a ton of cotton-seed, after being ground and sifted, is worth $13.25. 

 The grinding and sifting, in Mr. Lawes' experiments, removed about 8 percent 



of husk and cotton, 

 economical food. 



Cotton-seed, so treated, proved to be a verj 

 t Middlings, Canielle. % Shipstuf 



rich and 



