TABLE OF CONTENTS xiii 



CHAPTER II. Absorption and Transmission of Water - - 91 

 i. Absorption of Water, 

 ii. Transmission of Water. 

 a) Water Loss. 



(1) Evaporation. 



(2) Water Pores and Nectaries. 



(3) Exudation. 



(4) Summary of Water Loss. 



&) Upward Movement of Water in Trees and Other Tall 



Plants, 

 in. Summary of the Chapter. 



CHAPTER III. Absorption and Transmission of Solutes - - 115 

 i. Absorption of Gases. 



ii. Absorption of Dissolved Solids and Liquids, 

 in. Transmission of Solutes. 



CHAPTER IV. Influence of the Osmotic Pressure of the Sur- 

 rounding Medium upon Organisms - - - 124 

 i. Introductory, 

 ii. Presentation of Material. 



a) Influence upon Growth and Form. 



b) Influence upon Reproduction. 



c) Influence upon Irritability. 



(1) Changes of Irritability. 



(2) Osmotaxis. 



d) Analogy between the Effects of High Osmotic Pres- 

 sure of the Medium and Those Produced by Other 

 Water-Extracting Processes. 



in. Summary of the Chapter. 



INDEX 145 



