CONTENTS. 



CHAP. IV. 



On Theories in general ; and on the Modes and Consider- 

 ations by which they are to be verified - Page 201 



CHAP. V. 

 On the Characters of Natural Groups - - 236 



CHAP. VI. 



On the Importance of Analogy when applied to the Confirm- 

 ation of Theory - - - - - 282 



PART IV. 



ON THE PRESENT STATE OF ZOOLOGICAL SCIENCE IN BRITAIN, 

 AND ON THE MEANS BEST CALCULATED FOR ITS ENCOURAGE- 

 MENT AND EXTENSION. 



CHAP. I. 



Introductory Remarks. — Some Account of the Nature and 

 present State of our Scientific Societies and Institutions, 

 and of the Means they possess of encouraging Science. — 

 National Encouragement - 296 



CHAP. II. 



On the National Patronage of Science in other Countries, 

 as compared to its Neglect by the British Government. — 

 The Causes which produce this Neglect, and the Expediency 

 of removing them - - 339 



