166 LIST OF LITERATURE 



Kidson, E. B. and Askew, H. O. (1940). A critical examination of the 



nitroso-R-salt method for the determination of cobalt in pastures. 



N.Z. J. Sci. Tech. 21 B, 178b-189b. 

 Kidson, E. B., Askew, H. O. and Dixon, J. K. (1936). Colorimetric 



determination of cobalt in soils and animal organs. N.Z. J. Sci. 



Tech. 18, 601-7. 

 Kidson, E. B. and Maunsell, P. W. (1939). The effect of cobalt com- 

 pounds on the cobalt content of supplementary fodder crops. 



N.Z. J. Sci. Tech. 21 A, 125a-128a. 

 Knight, H. G. (1935). The selenium problem. J. Ass. Off. Agric. Chem. 



18, 103-8. 

 Knop, W. (1860). Ueber die Ernahrung der Pflanzen durch wasserige 



Losungen bei Ausschluss des Bodens. Landw. Versuchsst. 2, 65-99, 



270-93. 

 Kolthoff, I. M. and Lingane, J. J. (1941). Polarography . New York. 

 Kubowitz, F. (1937). Uber die chemische Zusammensetzung der 



Kartoffeloxydase. Biochem. Z. 292, 221-9. 

 Kuyper, J. (1930). Boorzuur tegen de topziekte van de tabak. Deli 



Proefstat. te Medan, Sumatra, Vlugschr. 50, 7 pp. 



Larsen, C. and Bailey, D. E. (1913). Effect of alkali water on dairy 



cows. Bull. S. Dakota Agric. Exp. Sta. no. 147, 300-25. 

 Larsen, C, White, W. and Bailey, D.E. (1912). Effect of alkali water on 



dairy products. Bull. S. Dakota Agric. Exp. Sta. no. 132, pp. 220- 



54. 

 Ledeboer, M. S. J. (1934). Physiologische onderzoekingen over Cerato- 



8tomella ulmi (Schwarz) Buisman. Diss. Utrecht. 

 Lee, H. A. and McHargtje, J. S. (1928). The effect of a manganese 



deficiency of the sugar cane plant and its relationship to Pahala 



blight of sugar cane. Phytopathology, 18, 775-86. 

 Lewis, A. H. (1939). Manganese deficiencies in crops. I. Spraying pea 



crops with solutions of manganese salts to eliminate marsh spot. 



Emp. J. Exp. Agric. 7, 150-4. 

 Lewis, A. H. (1943a). The teart pastures of Somerset. II. Relation 



between soil and teartness. J. Agric. Sci. 33, 52-7. 

 Lewis, A. H. (19436). The teart pastures of Somerset. III. Reducing the 



teartness of pasture herbage. J. Agric. Sci. 33, 58-63. 

 Lewis, J. C. (1942). The influence of copper and iodine on the growth 



of Azotobacter agile. Amer. J. Bot. 29, 207-10. 

 Lewis, J. C. and Powers, W. L. (1941). Iodine in relation to plant 



nutrition. J . Agric. Res. 63, 623-37. 

 Liebig, G. F., Vanselow, A. P. and Chapman, H. D. (1943). Effects of 



gallium and indium on the growth of Citrus plants in solution cul- 

 tures. Soil Sci. 56, 173-85. 

 Lingane, J. J. and Kerlinger, H. (1941). Polargraphic determination 



of nickel and cobalt. Simultaneous determination in presence of 



iron, copper, chromium, and manganese, and determination of 



small amounts of nickel in cobalt compounds. Industr. Engng Chem. 



(Anal, ed.), 13, 77-80. 



