THE CIBA FOUNDATION 



for the Promotion of International Co-operation in Medical and Chemical Research 

 41 Portland Place, London, W.l. 



Trustees : 



The Right Hon. Lord Adrian, O.M., F.R.S. 



The RiCxHT Hon. Lord Beveridge, K.C.B., F.B.A. 



Sir Russell Brain, Bt. 



The Hon. Sir George Lloyd-Jacob 



Sir Raymond Needham, Q.C. 



Director, and Secretary to the Executive Council: 

 Dr. G. E. W. Wolstenholme, O.B.E. 



Assistant to the Director: 

 Dr. H. N. H. Genese 



Assistant Secretary : 

 Miss N. Bland 



Librarian : 

 Miss Joan Etherington 



Editorial Assistants : 



Miss Cecilia M. OTonnor, B.Sc. 



Miss Maeve O'Connor, B.A. 



All Rights Reserved 



l^his book may not be reproduced by 

 any means, in whole or in part, with- 

 out the permission of the Publishers 



Published in London by 



J. & A. Churchill Ltd. 



104 Gloucester Place, W.l 



First Published 1957 

 Printed in Great Britain 



