viii ILLUSTRATIONS 



Diagrams illustrating Experiments to show Con- 

 vexity of the Earth pp. 366-368 



Llanrhaidwr Waterfall To face p. 403 



NOTE. 



The portraits of the Author illustrating this work show him at the 

 following ages : — 



Age 25. Before going to the Amazon. 



„ 30. Before the Malayan Journey. 



„ 46. At Publication of " Malay Archipelago." 



„ 55. At Publication of "Tropical Nature." 



„ 80. Frontispiece. 



The Frontispiece to u Darwinism " {age 66) completes the Series. 



I 



