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 Right Hon. Lord Beveridge, K.C.B., F.B.A. 



The Hon. Sir George Lloyd-Jacob 



Mr. Raymond Needham, Q.C. 



Director, and Secretary to the Executive Council: 

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



Assistant Secretary: 

 Miss N. Bland 



Librarian: 

 Miss Joan Etherington 



Editorial Assistants: 



Miss C. M. O'Connor, B.Sc. 



Miss E. C. P. Millar, A.H.W.C. 



All Rights Reserved 



This 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 1956 



Printed in Great Britain 



