15 

 Communications from ifie HubrecLt LaLoratory 



I The Hubrecht Laboratory 



From March 15"^ till August 31^', 1958, the third international team work on 

 embryology was held in Utrecht under the joint direction of Prof. Dr. Chr. P. 

 Raven (University of Utrecht) and Dr. P. D. Nieuwkoop (Director of the 

 Hubrecht Laboratory). The topic of this team work was: "A morphological 

 and physiological analysis of regulative and non-regulative processes in the 

 development o[ "mosaic" eggs o[ several terrestrial and freshwater inverte- 

 brates". 



The team consisted of seven members from five countries of four continents, 

 viz.: 



Miss A. Andrew, M.Sc, Johannesburg, South Africa 

 Dr. J. C. George, Baroda, India 

 Dr. C. Jura. Krakow, Poland 

 Dr. J. B. Morrill, Tallahassee, Flor., U.S.A. 

 Dr. I. Nakamura, Tokyo. Japan 

 Dr. S. Seo, Fukuoka, Japan 

 Mr. E. Suminski, M.V.Sc, Warszawa, Poland 



Both scientifically and socially the team work has been very successful. 

 A number of separate publications will be prepared by individual members. 



The space available for guest-workers in the present building is rapidly 

 diminishing, mainly because of the expanding international activities of the 

 Laboratory and the concomitant extension of its staff. At present plans are 

 being developed for the erection of a new building. This project is taking 

 much of the time of the scientific staff. Both these factors make it unavoidable 

 to postpone the fourth international team work. As soon as a decision can be 

 taken regarding this point, a proper announcement will be made. 



II The Central Embryological Library and the Cen- 

 tral E m b ry o 1 o g i c a 1 Collection 



For data regarding these two institutions we refer to the seventh full issue, 

 1957. page 204—205. 



