The Books Has Been Divided Into Fourteen Chapters. Volume 1 Chapter 1: The Plant Cell Describe The Cell Wall, The Protoplasm And The Vacuole Or Cell Sap; Chapter 2: Solutions And Membranes In Relation To The Plant Cell Describe The Solutions And Membranes; Chapter 3: The Roots Of Plants Describe The Influence Of Environment On Roots, The Extent Of Root Systems, The Weight Of Roots, Root Hairs, Excretions Of Roots And Beneficial And Toxic Effects Of Roots; Chapter 4: The Intake Of Water By Plants Describe The Sources Of The Plants Water Supply, Wilting Coefficient And Entrance Of Water Into The Root; Chapter 5: The Intake Of Solutes By The Plant Describe Mode Of Entrance Of Solutes, Factors That Affect The Absorption Ratio, The Unequal Absorption Of Ions, Transpiration And The Intake Of Salts, Nutrient Solutions And Antagonism And Balanced Solutions; Chapter 6: The Elements Absorbed By The Plant Describe The Number And Kind, Form, Essential Vs. Unessential Elements, Occurrence And Function And The Elemental Requirements And The Age Of The Plant. Volume 2 Chapter 7: The Loss Of Water From Plants Describe The General Need Of Water By Plants, The Evaporation Of Water From Plants Transpiration, The Loss Of Water From Plants In The Liquid Form Guttation; Chapter 8: The Formation Of Carbohydrates By The Green Plant Describe The Synthetic Power Of The Green Plant, The Carbohydrate Of The Green Plant And Photosynthesis; Chapter 9: The Nitrogen Metabolism Of The Green Plant Describe The General Relation Of Nitrogen To The Plant, Sources Of Nitrogen Supply Of Plant, The Proteins Of The Green Plant, Nitrogen Bases In Plants, Loss Of Nitrogen From Plants And Carbon/Nitrogen Relations; Chapter 10: The Fat Metabolism Of The Green Plant Describe The Fatty Substances In Plants, Crude Lipides; Chapter 11: The Process Of Digestion In The Green Plant Describe Foods Of The Green Plant, Nature Of Digestion, Enzymes And A Comparison Of Digestion In Plants And Animals; Volume 3 Chapter 12: The Translocation Of Materials In Plants Describe The Need Of Translocation, Tissues Concerned And Movement Of Materials; Chapter 13: The Process Of Respiration In Plants And The Last Chapter 14: The Process Of Growth In Plants Describes The Nature Of Growth, Stages In The Growth Of A Plant Cell, Growth Of Plant Organs, Nature Of Growth Curves, Periodic Elongation, Growth-Promoting And Growth-Inhibiting Substances, Dormant Or Resting Periods And Factors Affecting Growth Of Plants. The Book Has Been Written In Such Form As To Be Available As A Text For Upper-Classmen And Graduate Students And At The Same Time To Be Sufficiently Comprehensive As A Reference Book For Investigators In Plant Physiology.