PREFACE xvii 



abundant. As these became scarce, so did the mhnetic 

 Pseudacraeas run into each other more and more 

 completely through the intermediation of an increasing 

 number of transitional forms. 



In concluding I should wish to take this opportunity 

 of thanking all those naturalists who, during the past 

 quarter of a century, in distant lands, have helped me 

 in my work and have given me the great pleasure of helping 

 them ; and, among all, especially to thank the author. 

 Dr. G. D. Hale Carpenter, D.M., not only for the mutual 

 help which may be gathered from this book, but for 

 much further help in S.W. Uganda, and ex-German East 

 Africa ; the late C. 0. Farquharson, in S. Nigeria, whose 

 death in the sinking of the Burutu almost at the end of 

 the war, was so great a loss to Natural History ; W. A. 

 Lamborn, in S. Nigeria, ex-G.E.A., and now in the 

 Federated Malay States ; Dr. G. A. K. Marshall, D.Sc, 

 C.M.G., in Natal and S. Rhodesia ; the Rev. Canon K. 

 St. Aubyn Rogers, M.A., in British and ex-G.E.A., the 

 late R. W. C. Shelford, M.A., in Borneo, another grievous 

 loss to science ; C. F. M. Swynnerton, in S.E. Rhodesia ; 

 and C. A. Wiggins, P.M.O., Uganda, in this country 

 and B.E.A. To all these and many others I offer most 

 grateful thanks for some of the greatest happiness I 

 have known. 



EDWARD B. POULTON. 

 August 3, 1920. 



