Communications of the 



INTERNATIONAL SOCIETY 



OF DEVELOPMENTAL BIOLOGISTS 



(Developmental Biology Section of the I.U.B.S.) 



The I.S.D.B. intimates with deep regret the death of its members F. W. R. 

 Brambell (Bangor), H. Hayek (Wien), D. R. S. Kirby (Oxford), and F. E. 

 Lehmann (Bern). 



The I.S.D.B. sponsored a local Symposium on "Environmental factors in 

 cell differentiation" which was held in Jerusalem, Israel from April 29th 

 till May 1st, 1970. Dr. H. Eyal-Giladi was chairman of the local organizing 

 committee. The Hebrew University of Jerusalem and the Weizmann Institute 

 of Science, Rehovot acted as co-sponsors. The Symposium had 38 invited 

 participants from 13 countries; there were 82 local observers. 



The I.S.D.B. at present has 479 members; 34 new members were admitted 

 by the Board in 1970. The latest membership list is to be found in the main 

 issue of vol. 13 of "General Embryological Information Service" (1969, p. 305). 

 A new hst will be published in vol. 14 (1971 ). 



Proposals and spontaneous applications for membership are welcome at 

 any time. The procedure and requirements for application are as follows: 



a) Candidates for membership can be proposed or supported by two mem- 

 bers at any time. The Board screens the application once or twice a year. 



b) The requirement for membership is that the candidate should have made 

 a substantial contribution to the field of developmental biology. The Board 

 decides whether a particular applicant meets this standard. 



c) Proposals must be accompanied by a curriculum vitae and a list of 

 publications of the candidate, and should be sent either to Prof. E. Zwilling, 

 Dept. of Biology, Brandeis Univ., Waltham, Mass. 02154, U.S.A. or to Prof. 

 P. D. Nieuwkoop, Hubrecht Laboratory, Uppsalalaan 1, Universiteitscentrum 

 ,.De Uithof", Utrecht, Netherlands. 



Utrecht, October 1970 The Adjunct Secretary-Treasurer, 



P. D. Nieuwkoop 



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