CONTENTS 



CHAPTER PAGE 



I. — The Secret of Darwin's Greatness .... 9 



II. — Boyhood— Edinburgh — Cambridge (1817-31) . . 16 



III.— Voyage of the "Beagle" (1831-36) .... 21 



TV. — Cambridge — London — Work upon the Collections 

 — Marriage — Geological Work — Journal of 

 the Voyage — Coral Reefs— First Recorded 

 Thoughts ox Evolution (1837-42) . . . 2o 



V. — Down — Geology of the Voyage — Work on Cir- 



ripedes (1842-54) 35 



VI. — The Growth of the "Origin of Species" (1837-58) 42 



VII. — Growth of the " Origin " {continiied) — Correspond- 

 ence WITH Friends 50 



VIII.— Darwin and Wallace (1858) 60 



IX. — Darwin's Section of the Joint Memoir read 



BEFORE THE LiNNEAN SOCIETY JuLY 1, 1858 . 65 



X. — Wallace's Section of the Joint Memoir read 



BEFORE THE LiNNEAN SOCIETY JuLY 1, 1858 . 71 



XI.— Comparison of Darwin's and Wallace's Sections 

 OF THE Joint Memoir — Reception of their 

 Views — Their Friendship 78 



XII. — The Growth of Wallace's Convictions on Evolu- 

 tion AND Discovery of Natural Selection — 

 Borneo 1855— Ternate 1858 .... 87 



