x INSECT TRANSFORMATION 



The author is indebted to Miss Eileen E. Barnes for the care 

 and skill wherewith she has re-drawn many of the figures. 

 He would also gratefully acknowledge valuable aid in proof- 

 revision from his colleagues, J. N. Halbert of the National 

 Museum, and D. S. Torrens of the Royal College of Science, 

 Dublin. The last-named has added the labour of index- 

 making to many acts of kindly help. 



G. H. C. 

 DUBLIN, August, 1921 



