TABLE OF CONTENTS 



PAGE 



I. The Mechanistic Conception of Life - - - 3 



II. The Significance of Tropisms for Psychology 35 



III. Some Fundamental Facts and Conceptions concerning the 

 Comparative Physiology of the Central Nervous Sys- 

 tem 65 



IV. Pattern Adaptation of Fishes and the Mechanism of 



Vision 79 



V. On Some Facts and Principles of Physiological Morphol- 

 ogy 85 



VI. On the Nature of the Process of Fertilization 113 



VII. On the Nature of Formative Stimulation (Artificial Par- 

 thenogenesis) 127 



VIII. The Prevention of the Death of the Egg through the Act 



of Fertilization 155 



IX. The R61e of Salts in the Preservation of Life 169 



X. Experimental Study of the Influence of Environment on 



Animals ...... 195 



Index 229 



