PERGAMON PRESS INC. 



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 1404 Piew York Avenue N. W'., Washirtglon, 5 D.C. 



PERGAMON PRESS LTD. 



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PERGAMON PRESS S.A.R.L. 

 24 Rue des EcoUs, Paris V 



PERGAMON PRESS G.m. b.H. 

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Copyright 



© 



1962 



Pergamoa Press Ltd. 



Library of Congress Card A'o. 60 — 12557 



Printed in Hungary hv 

 The Printing House of the Hungarian Acad my of Sciences 



