CONTENTS 



i 



PAOK 

 THE DARWINIAN HYPOTHESIS [1859] 1 



II 



THE ORIGIN OF SPECIES [1860] . 



Ill 



^CRITICISMS ON " THE ORIGIN OF SPECIES " [1864] ... 80 



IV 



THE GENEALOGY OF ANIMALS [1869] 107 



V 



MR. DARWIN'S CRITICS [1871] 120 



VI 

 / 



EVOLUTION IN BIOLOGY [1878] 187 



