BRITISH WARBLERS 



has been kind enough to give me the benefit of his wide 

 experience in the case of many species. I must especially 

 thank Professor Lloyd Morgan, Mr. W. P. Pycraft and 

 Mr. G-. B. Lodge for many valuable criticisms and suggestions, 

 Mr. E. W. Hopewell for his great care in revising the proof- 

 sheets, and Mr. H. Gronvold for the infinite pains he has 

 taken in carrying out my wishes. 



