XIV TABLE OF CONTENTS 



PAGE 



72. Absorption of Water by Fruits and Seeds 190 



73. Further Experiments on the Absorption of Water by Seeds . . 194 



74. Absorption of Water by Mosses 196 



VI. Movement of Water in Plants 



75. Boot Pressure 197 



76. The Flow of Sap from Injured Trees Growing in the Open . . .199 



77. The Influence of External Conditions on the Flow of Sap from De- 



capitated Plants 200 



78. Periodicity of the Eoot Pressure 204 



79. The Causes of Eoot Pressure and Belated Phenomena . . . 205 



80. Further Experiments on the Escape of Liquid Water from Plants . 206 



81. The Organisation of Plant Structures and Transpiration . . . 209 



82. Further Experiments respecting Transpiration 212 



83. The Influence of External Conditions on the Transpiration of Plants 216 



84. The Wood as a Tissue for the Conduction of Water, and the Influence 



of Transpiration on the Movement of Water in Plants . . . 225 



85. The Mobility of Water in the Wood 230 



86. The Bate at which Water Moves in the Plant 233 



87. The Withering of Plants 235 



VII. The Absorption of Mineral Substances by Plants 



88. The Boots of Plants as Organs for the Absorption of Mineral Sub- 



stances 237 



89. The Absorption of Mineral Substances from Nutrient Solutions by 



Boots 239 



90. CoiTosion Phenomena 241 



91. The Causes of Corrosion Phenomena 242 



92. Absorptive Capacity of the Soil . 244 



THIRD SECTION 

 METABOLIC PROCESSES IN THE PLANT 



I. The Behaviour of Nitrogenous Compounds 



93. The Proteids which can be Isolated from Plant Structures . . . 248 



94. Macrochemical and Microchemical Beactions of Proteids . . . 249 



95. General Considerations Bespecting the Behaviour of Proteids in 



Plants 251 



