viii PREFACE 



for their courteous permission to make several long quotations 

 from Sir J. E. Tennent's Ceylon, and from H. W. Bates' Naturalist 

 on the River Amazons. 



Lastly, a remark about my Editors. Instead of being a 

 source of annoyance they have rendered me the greatest help. 



H. GADOW. 



CAMBPJDGE, December 19, 1900. 



