98 FUNDAMENTALS OF FRUIT PRODUCTION 



55. Haberlandt, G. Physiological Plant Anatomy. English translation. P. 219. 



London, 1914. 



56. Hartig, T. Allg. Forst u. Jagdzeit. N. F. 54. 1878. 



57. Hartig, T. Bot. Centralblatt 36: 388-391. 1888 



58. Hasselbring, H. Bot. Gaz. 57: 72-73. 1914. 



59. Hedrick, U. P. N. Y. Agr. Exp. Sta. Bui. 314. 1909. 



60. Hedrick, U. P. N. Y. Agr. Exp. Sta. Bui. 375. 1914. 



61. Heinicke, A. J. Cornell Univ. Agr. Exp. Sta. Bui. 393. 1917. 



62. Hellriegel, F. H. Beitrage zu den Natur wissenschaftlichen Grundlagen des 

 Ackerbaus. Pp. 662-664 Braunschweig, 1883. 



63. Hilgard, E. W. Soils, 6th Edition. Pp. 168-171, 245. New York, 1914. 



64. Ibid. P. 200. 



65. Ibid. P. 263. 



66. Hilgard, E. W., and Loughridge, R. H. Cal. Agr. Exp. Sta. Rept. Pp. 41, 56. 



1897-8. 



67. Hooker, H. D., Jr. Ann. of Bot. 29: 265-283. 1915. 



68. Hooker, H. D., Jr. Mo. Agr. Exp. Sta. Research Bui. 40. 1920. 



69. Hooker, H. D., Jr. Proc. Am. Soc. Hort. Sci. 17: 204-207. 1920. 



70. Howard, A. Rept. Agr. Research Inst. Pusa. P. 43. 1913-14. 



71. Howard, A., and Howard, G. L. C. Agr. Research Inst. Pusa. Buls. 52 and 61. 



1915-16. (Abs. in Plant World. 20: 260-262. 1917.) 



72. Huntington, E. The Climatic Factor as Illustrated in Arid America. Pp. 



101-174. Carnegie Inst. Washington, 1914. 



73. Jones, F. R. A Study of the Development and Extent of the Roots of Apple 



Trees. 1912. Unpublished Thesis on file in the Library of the University of 

 Maine. 



74. Jones, J. S., and Colver, C. W. Ida. Agr. Exp. Sta. Bui. 75. 1912. 



75. Kearney, T. H. U. S. D. A., Bur. PI. Ind. Bui. 125. 1908. 



76. Kelley, W. P., and Thomas, E. E. Cal. Agr. Exp. Sta. Bui. 318. 1920. 



77. King, F. H. Physics of Agriculture. 2d Edition. P. 131. Madison, Wis. 



1901. 



78. Ibid. P. 189. 



79. King, F. H. U. S. D. A., Bur. Soils Bui. 26. 1905. 



80. Kohl, F. G. Die Transpiration der Pfanzen. Brunswick, 1886. 



81. Korstian, C. F., Hartley, C, Watts, L. F., and Hahn, G. G. Jour. Agr. 

 Research. 21: 153-169. 1921. 



82. Kosaroff, P. Einfluss verschiedenen ausseren Faktoren auf die Wasseraufnahme 



der Pflanzen. Dissertation. Leipzig, 1897. 



83. Leather, J. W. Cited by J. W. Patterson. Jour. Agr. Victoria. 10:353. 1912. 



84. Lepeschkin, W. W. Beih. Botan. Centralbl. 19: 409-452. 1906. 



85. Lewis, C. I., Kraus, E. J., and Rees, R. W. Ore. Agr. Exp. Sta. Bui. 113. 1912. 



86. Loughridge, R. H. Cal. Agr. Exp. Sta. Rept. Pp. 61, 64, 66. 1897-98. 



87. Ibid. Pp. 82, 94, 95, 96. 



88. Lutman, B. F. Vt. Agr. Exp. Sta. Bui. 214. 1919. 



89. Lyon, T. L., and Fippin, E. O. The Principles of Soil Management. 4th 



Edition. New York, 1911. 



90. Ibid. P. 192. 



91. Mason, S. C. U. S. D. A., Bur. PI. Ind. Bui. 192. 1911. 



92. Mason, S. C. U. S. D. A Bui. 271. 1915. 



93. McCool, M. M., and Millar, C. E. Soil Sci. 9: 217-233. 1920. 



94. McCue, C. A. Del. Agr. Exp. Sta. Bui. 120. 1918. 



95. McLaughlin, W. W. U. S. D. A. Bui. 835. 1920. 



