CONTENTS. 



PAGE 



DAEWINISM 1 3 



THE NOACHIAN FLOOD l 34 



INSTINCT AND REASON 2 62 



HUMAN NATURE AND BRUTE NATURE . . . 82 



THE LAPSE OF TiME 1 93 



NOTE ON THE HYPOTHESIS OF SPONTANEOUS GENERA- 

 TION 1 126 



IMPERFECTION OF THE GEOLOGICAL RECORD 1 . -133 

 DARWINISM : THE NOACHIAN FLOOD . . .147 

 DARWINISM : SCIENCE AND RELIGION . . .152 

 DARWINISM, AND THE FIRST VERTEBRATE . .156 

 THE FIRST VERTEBRATE, AND THE BEGINNING OF 



REASON . . 160 



OYSTERS OF THE CHALK, AND THE THEORY OF 



DEVELOPMENT . . . . . . .165 



THE MATHEMATICAL TEST OF NATURAL SELECTION . 168 

 THE GENESIS OF SPECIES . ... . . 173 



INDEX 181 



1 These papers were read at various dates between February 1869 

 and January 1871, before the Torquay Natural History Society. 



2 Head before the Devonshire Association, July 1870. 



