ACKNOWLEDGEMENTS 



I wish to acknowledge permission to reproduce matter, granted by : 

 Miss M. Courtenay-Latimer; Dr. E. I. Nielsen; Dr. J. Millot; Captain 

 E. E. Hunt; S.A. Broadcasting Co.; Die Burger , Cape Town; Daily 

 News, Durban; The Times, London; Nature, London; Evening Post, 

 Jersey; Jersey Electricity Co. 



I am indebted to Dr. H. J. van Eck, Advocate Adrian A. Roberts 

 (formerly Law Adviser to the Union Government), and Professor 

 W. E. G. Louw for helpful criticism of the manuscript, also to Messrs. 

 A. S. Wheeldon and H. Rushmere for opinions on certain points. 



To my wife I am indebted for her constant support, for valuable if 

 initially devastating criticism and for numerous illustrations. 



This book stands as a tribute to the foresight of the South African 

 Council for Scientific and Industrial Research, whose continued generous 

 support enabled me to pursue this long quest. 



