156 



by death: Prof. Dr F. Th. LEWIS, who died at the age of 76 years; Prof. Dr 

 H. STIEVE, who died in September 1952; and Prof. Dr G. KREDIET, who 

 died in October 1952. 



Prof. Dr P. BOUIN resigned his membership. 



A General Assembly of the I. I.E. was held in the Zoological Laboratory of 

 the University and the Hubrecht Laboratory in Utrecht, Netherlands, on 

 August 30th — 31st, 1952. It was preceded by a Symposium on August 27th — 

 29th, organized by the I. I.E. with the financial support of I.C.S.U., I.U.B.S., 

 the Rockefeller Foundation and the Netherlands Government. 



The theme of the Symposium was: The biochemical and structural basis of 

 morphogenesis. There were 23 participants from 9 countries. The subject matter 

 was divided into 9 themes, each of which was opened by an introductory 

 paper. These papers were the following: 



1. J. Clavert. Strasbourg: Biochemie d I'oogenese. 



2. A. Monroy, Palermo: Biochemical and structural changes at fertihzation. 



3. E. Zeuthen, Copenhagen: Biochemistry and metaboHsm of cleavage. 



4. P. H. Tuft, Edinburgh: The energetic relationships during embryonic 



development. 



5. T. Hultin, Stockholm: MetaboHsm and determination. 



6. S. Ranzi, Milano: Proteins, protoplasmic structure and determination. 



7. G. ten Gate, Amsterdam: The formation of enzymes during embryoge- 



nesis. 



8. H. Herrmann, Denver: Biochemical development during organogenesis. 



9. M. W. Woerdeman, Amsterdam: Serological methods in the study of 



morphogenesis. 



The introductory papers gave rise to animated discussions. The Proceedings 

 of the Symposium will be pubhshed in the Archives Neerlandaises de Zoologie. 



In the morning of Saturday, August 30th, 1952, a private meeting of the 

 LI.E. was held. It was attended by 10 members from 6 countries. The revised 

 Statutes and by-laws were approved. The I. I.E. shall cooperate v/ith the 

 Committee on Developmental Biology of the National Research Council, 

 U.S.A., for the promotion of international cooperation in the field of develop- 

 ment and growth. A resolution on the importance of a broader treatment of the 

 modern dynamic aspects of embryological science for medical education was 

 adopted. It further was decided that an Abstracting Preview Service will be 

 built up, bimonthly issuing mimeographed copies of abstracts from abstracting 

 journals for free circulation; a resolution was passed giving authorization for 

 the solicitation of funds for such purpose. The Hubrecht Laboratory shall try 

 to build up an organization for improving the possibilities for exchange of living 

 materials between different countries. In future a fee of $ 20. — a month shall 

 be asked from visiting scientists at the Hubrecht Laboratory. Seven persons 

 were nominated for fellowship of the LI.E. The Board for the next period was 

 elected, consisting of M. W. WOERDEMAN (president), A. DALCQ. 

 E. FAURfi FReMIET, Miss H. FELL, F. E. LEHMANN. P. WEISS and 

 Chr. P. RAVEN (secretary-treasurer). It was decided that the next General 

 Assembly will be held in the summer of 1955, preferably in the United States. 



In the afternoon of August 30th and on August 31st, scientific meetings 

 were held. The following papers were delivered: 



J. Pasteels, Brussels: Le developpement des formes exterieures chez le 



Cameleon. 



