TABLE OF CONTENTS 



Page 



Author's Preface v 



Editor's Note 'vn 



Chapter 



I. Oxygen Respiration i 



1. The general conception of oxygen respiration i 



2. The gas exchange of respiration 3 



3. Production of radiant energy in plant respiration 12 



4. The influence of various external factors on oxygen respiration . . 15 



5. Analytical methods for the determination of oxygen respiration . . 25 



II. Anaerobic Respiration 52 



1. The general conception of anaerobic respiration 52 



2. The products of anaerobic respiration 59 



3. Anaerobic respiration under natural conditions 63 



4. Analytical methods for the determination of anaerobic respira- 



tion ^5 



III. The Connection of Oxygen Respiration with Anaerobic Respira- 

 tion 79 



1. Review of the older literature 79 



2. Review of the recent literature °° 



3. The latest objections to the theory of the connection of anaerobic 



with normal respiration 92 



IV. The Chemical Processes IN Plant Respiration .■.■.' ^"^ 



1. The anaerobic material transformations and the participatmg 



enzymes ^' 



2. The nature of the oxidation processes in plant cells 102 



3. The respiratory material ^^9 



4. The nature of the connection between the anaerobic cleavage proc- 



esses and the subsequent oxidation of the cleavage products . . . 124 



5. H>T)otheses as to the nature of the oxidisable products of fermenta- 



tion -^ 



6. The supposed formation of organic acids in the respiratory process. . 135 



7. The coordination of the various processes in plant respiration ... 143 



V. Respiration at the Expense of Mineral Sl-bstances 150 



1, Nitrifying bacteria ^^° 



2. Sulphur bacteria, iron bacteria, hydrogen bacteria, etc 151 



Index ■ ^^^ 



xi 



28887 



