CONTENTS 



PAGE 



Preface to the English Translation vii 



Editors' Note i x 



Introduction 1 



PART I 

 ABSORPTION OF MATTER AND ENERGY 



CHAPTER I 



Absorption of Carbon and Accumulation of Potential Energy. . 6 



1. Sources of Carbon for the Plant o 



2. Methods of Detection and Study of the Process of Nutrition with 

 Carbon Dioxide. Liberation of Oxygen by the Plant 10 



3. Products of Carbon Assimilation 13 



4. The Green Plastids as Special Organs of Carbon Assimilation. ... 17 



5. Chlorophyll. Its Chemical Composition, Structure, and Prop- 

 erties 18 



6. Pigments Accompanying Chlorophyll 21 



7. Conditions of Chlorophyll Formation. Etiolation and Chlorosis. 22 



8. The Importance of Light for Carbon Assimilation. Photosyn- 

 thesis and Chemosynthesis 25 



9. Relation of Chlorophyll to Absorption of Light Energy. Optical 

 Properties of Chlorophyll. Internal Chemistry of Photosynthesis. 26 



10. Quantitative Relations between Absorbed and Stored Energy in 

 the Plant 31 



11. Leaf Structure and Assimilation. Absorption of Carbon Dioxide 



by the Leaf 34 



12. Dependence of Assimilation on Light. Light and Shade Plants. 

 Growing of Plants in Artificial Light 37 



13. Dependence of Assimilation on the Amount of Carbon Dioxide. 

 The Carbon-dioxide Cycle in Nature 43 



14. Dependence of Assimilation on Temperature. The Interaction of 

 Several Factors in the Process of Assimilation. The Law of 

 Limiting Factors 45 



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