TABLE OF CONTENTS 



.^CHAPTER I 



PAGES 



The Difficulties and Methods of Compakative Psy- 

 chology 1-26 



I. Difficulties. 2. Methods of Obtaining Facts: An- 

 ecdote. 3. Methods of Obtaining Facts: Experiment. 



4. Methods of Obtaining Facts: the Ideal Method. 



5. Methods of Interpreting Facts. 



XJHAPTER n 



The Evidence of Mind . 27^37 



6. Inferring Mind from Behavior. 7. Inferring Mind 

 from Structure. 



X:hapter m 



The Mind of the Simplest Animals 38-53 



8. The Structure and Behavior of Amceba. g. The Mind 

 of Amceba. 



\JCHAPTER IV 



Sensory Discrimination : Methods of Investigation . . S3~6* 

 10. Preliminary Considerations. 11. Structure as Evi- 

 dence of Discrimination. 12. Behavior as Evidence of 

 Discrimination. 13. Evidence from Structure and Behavior 

 Combined. 14. Evidence for Discrimination of Certain 

 "Lower" Sensation Classes. 



CHAPTER V 



Sensory Discrimination: the Chemical Sense . . . 63-115 

 "vo 15. The Chemical Sense in Protozoa. 16. The Chemical 

 Sense in Coelenterates. 17. The Chemical Sense in Flat- 



