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 meritorious Secretary- 

 Treasurer Prof. E. Zwilling (Waltham, Mass.), and of its members T. Hum- 

 phrey, M. Ichikawa, B. M. Patten, J. A. M. Runnstrom, and E. Witschi. 



Upon the sudden and untimely death of Prof. Zwilling his office has been 

 temporarily taken over by Dr. R. L. DeHaan (Baltimore, Md.). Dr. DeHaan 

 will remain in office until the next General Assembly in 1973. 



In 1970 the I.S.D.B. sponsored an event which was inadvertently overlooked 

 in the Communications of that year (G.E.I.S., Suppl. 13, 1970). This was the 

 "International Working Party on Crystallin Immunochemistry", held in Edin- 

 burgh from June 23 — July 6, 1970, and organized by Dr. R. Clayton. 



In the past year the I.S.D.B. sponsored two Symposia. The first was on 

 "Genetics of the Spermatozoon", held in Edinburgh, August 16 — 21, and or- 

 ganized by Prof. S. Gluecksohn Waelsch and Dr. R. A. Beatty. The second 

 was the "Lens Symposion" held in Utrecht, Netherlands on August 23 — 26. 

 Prof. W. J. van Doorenmaalen was chairman of the organizing committee. The 

 Symposion had 70 members from 11 countries; there were 12 local observers. 



The I.S.D.B. at present has 506 members; 30 new members were admitted by 

 the Board in 1971. A complete membership list appears below. 



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 members 

 at any time. The Board screens the applications 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 public- 

 ations of the candidate, and should be sent either to Dr. R. L. DeHaan, Dept. of 

 Embryology, Carnegie Inst, of Washington, 1 1 5 W. University Parkway, Bal- 

 timore, Md. 21210, U.S.A. or to Prof. P. D. Nieuwkoop, Hubrecht Laboratory, 

 Uppsalalaan 1, Universiteitscentrum "De Uithof", Utrecht, Netherlands. 



Utrecht, January 1972 The Adjunct Secretary-Treasurer, 



P. D. Nieuwkoop 



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