THIS BOOK IS DEDICATED TO THE MEMORY 
OF THE COUNTLESS THOUSANDS OF WORKERS BY 
HAND AND BRAIN WHO IN THE PAST HAVE 
BUILT UP THE INDUSTRIES WHOSE ORIGIN IT 
DESCRIBES; TO THE MEN WHO CARRY ON 
TO-DAY j TO THOSE WHOSE THRIFT, FORESIGHT 
AND COURAGE HAVE DEVELOPED THESE OUR 
NATIONAL RESOURCES ; AND TO MY COLLEAGUES, 
THE DIRECTORS AND MANAGERS OF SOME OF 
THE GREAT UNDERTAKINGS TO WHICH ITS 
PAGES REFER 
hk Ie 
. “dd 
wey 
7 opin 
“Kiel Er 
KAWMY 
PRINTED IN GREAT BRITAIN