ACKNOWLEDGEMENTS 



The Authors and Publishers wish to acknowledge with 

 thanks permission to reproduce photographs from the follow- 

 ing: frontispiece and Nos. 4, 5 and 7, Geoffrey Kinns; 

 No. I, S. Beaufoy; No. 2, Philip Street; No. 3, Jane Burton; 

 Nos. 6 and 8, L. Hugh Newman's Natural History Photo- 

 graphic Agency, from H. Bastin and W. J. C. Murray re- 

 spectively; Nos. 9 and 12, Sdeuard C. Bisserot; No. 10, 

 Eric Hosking; No. 11, Douglas P. Wilson; No. 13, J. H. D. 

 Hooper; No. 14, Marine Studios, Marineland, Florida; 

 No. 15, Marineland of the Pacific, California; No. 16, 

 H. R. Hewer; Nos. 17 and 18, Sarawak Museum; No. 19, 

 Zoological Society of London; No. 20, R. M. Lockley. 



