CONTEI^J"TS. 



The Motements and Hadits of Plants. 



The Movement of Plants in Relation to their Wants . 



The Power of MoTement in Animal and Plant compared 



Advantages of Cross-Fertilization 



Potency of the Sexual Elements in Plants 



Experiments in Crossing 



The Struggle for Existence among Seeds . 



Practical Application of these Views . 



Marriages of First Cousins 



Development of the Two Sexes in Plants 



Why the Sexes have fceen reseparated 



Comparative Fertility of Male and Female Plants 



Effect of Climate on Reproduction 



Causes of Sterility among Plants 



An " Ideal Type " or Inevitable Modification 



Special Adaptations to a Changing Purpose . 



An Illustration .... 



As interesting on the Theory of Development as on that of Direct 



Interposition ..... 

 The Sleep of the Plants .... 

 Self-Protection during Sleep .... 

 Influence of Light upon Plants 

 Influpnce of Gravitation upon Plants . 

 The Power of Digestion in Plants 

 Diverse Means by which Plants gain their Subsistence 

 How a Plant preys upon Animals 



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