xiv VEGETABLE PHYSIOLOGY 



PACK 



Relationship between the plastid and the colouring matter Leuco- 

 plasts Conditions of formation of chlorophyll ; light, temperature, 

 j ron Formation of carbohydrates by chloroplasts ; conditions of 

 their activity Theories of photosynthesis Relation of starch to 

 the process Rays of light made use of in photosynthesis ; researches 

 of Engelmann, of Tmiriazeff Inhibition of the chlorophyll appara- 

 tus Formation of organic substance in its absence . . 146-104 



CHAPTER XI 



THE CONSTRUCTION OP PROTEINS 



Complexity of the composition of protein ; its percentage composition 

 Classification of proteins ; albumins, globulins, metaproteins, 

 proteoses, peptones, proteins soluble in alcohol Synthesis of 

 proteins in plants ; various hypotheses Locality of protein con- 

 struction in the plant 165-175 



CHAPTER XII 



THE CONSTITUENTS OF THE ASH OF PLANTS 



Nature and composition of the ash Water-culture and the limitations 

 of its usefulness in the study of the ash Classification of the 

 constituents of the ash The selective power of plants Sulphur 

 and phosphorus Potassium, magnesium, calcium, iron Sodium, 

 silicon, chlorine, bromine, iodine, manganese Accidental con- 

 stituents of the ash Relation of nitrogen and potassium to herbage 

 plants 176-188 



CHAPTER XIII 



OTHER METHODS OF OBTAINING FOOD 



Partial or entire absence of the constructive power Nutrition of 

 saprophytes Insectivorous plants Utricularia The pitcher- 

 plants Drosophyllum Pinguicula Dionsea Drosera 

 Digestion of substances by Fungi Commensalism Symbiosis 

 Mycorhiza Root parasites Parasitism among green plants and 

 Fungi 189-212 



CHAPTER XIV 



TRANSLOCATION OF NUTRITIVE MATERIALS 



Conditions of the constructive processes ; surplus production and 

 storage Necessity of circulation of food material in consequence 

 of localisation of construction, and intermittence of consumption 



