PERGAMON PRESS INC. 



122 East 55th Street, New York 22, NY. 

 P.O. Box 47715, Los Angeles, California 



PERGAMON PRESS LTD. 

 4 & 5 Fitzroy Square, London W.Î 



PERGAMON PRESS S.A.R.L. 

 24 Rue des Écoles, Paris Ve 



Copyright © 1959 

 Pergamon Press Ltd. 



Library of Congress Card No. 59-12060 



Printed in Great Britain by AdlarJ & Son Limited, 

 London and Dorking 



