xii CONTENTS 



I V,1 



87. Glucosides, tannin, and phenols . 49 1 



88. Pigments ...... 494 



89. Alkaloids, ptomaines, and other poisons . 49^ 



90. Ethereal oils, resins, &c. . 



91. Enzymes ...... 5 O1 



92. External influences . .510 



93. Self- regulation ... 5'4 



CHAPTER IX 

 RESPIRATION AND FERMENTATION 



94. Introductory . 



95. Aerobic respiration . 5'9 



96. Products of aerobic respiration 5 26 



97. Respiratory katabolism in anaerobes . 53 



98. Sources of energy in anaerobes .... 53 2 



99. Intramolecular respiration .... 53 



100. Mechanism and causes of physiological combustion . 539 



101. ; , (continued) . . 543 



1 02. Relationship between aerobic and anaerobic respiration 546 



103. General view of certain fermentative activities 



104. Influence of the external conditions on respiration . 5^ 



105. Importance of respiration . 5 DD 



CHAPTER X 

 TRANSLOCATION 



106. Translocation of organic food substances 



107. ,, ash constituents . 5^3 



108. Mechanism and causes of translocation . 5^7 



109. Special examples . 59 2 



INDEX .... . ... 605 



