6 3 AGRICULTURE 



631 Lyon, T. L., and Pippin, E. O. Principles of soil 



management. New York 1909. 



631 Mosier, J. G., and Gustafson, A. F. Soil physics and 



management. Philad. [1917]. 



631 Roberts, I. P. The Fertility of the land. 



New York 1911. 



631 Russell, E. J. Lessons on soil. Camb. 1912. 



631 Scott, J., and Morton, J. C. The Soil. Lond. 



631 Snyder, H. Soils and fertilizers. New York 1912. 



631 Wahnschaffe, F. Guide to the scientific examination 



of soils. Lond. 1892. 







631 Warington, R. Lectures on some of the physical 



properties of soil. Oxf. 1900. 



631 Whiting 1 , A. L. Soil biology : laboratory manual. 



New York 1917. 



631(23) France. Restauration et conservation des terrains en 

 montagne. 3 vols. Paris 1911. 



631 Burgess, P. S. Soil bacteriology : laboratory manual. 



15768 Easton, Pa. 1914. 



631 : 633 Mosier, J. G. Soils and crops. Chicago [1919]. 



63 [r 22 Livingston, B. E,*, and others. Water-relation between 

 plant and soil, etc. Wash. 1915. 



'6313 King, F. H. Irrigation and drainage. New York 1903. 

 6313 Wilcox, L. M. Irrigation farming. New York 1912. 

 63141 Klippart, J. H. Land drainage. Cincinnati 1894. 



6316 FERTILIZERS. 



6316 Dyer, B., and Shrivel!, F. W. E. Manuring of market 

 garden crops. Lond. [1910]. 



6316 Hall, A. D. Feeding of crops and stock. Lond. 1911. 



6316 Fertilizers and manures. Lond. 1909. 



6316 Heiden, E. Lehrbuch der Diingerlehre. 2 vols. 



Hannover 1879-87. 



6316 Lambert, T. Bone products and manures. Lond. 1913. 



'6316 Lloyd, S. L. Mining and manufacture of fertilizing 

 materials. New York 1918. 



244 



