STABLE AND BARNYARD MANURE 89 



ADDITIONAL READING 



'The Fertility of the Land." By Isaac Phillips Roberts. 

 'Making Best Use of Manure." 0. M. Hayes. The Ohio 



Farmer. March 8, 1913. 

 : Handling Soil for Production." Twentieth Century Farmer. 



March 15, 1913. 

 : Soils and Fertilizers." Harry Snyder, B. S. 



