General questions and announcements 



I The Hubrecht Laboratory 



In the year 1 956 the second international developmental 

 research team will meet at the Hubrecht Laboratory under the direction 

 of Dr M. E. Rawles (Baltimore, Md. U.S.A.) and Dr P. D. Nieuwkoop. 



The duration has been extended by one month (January 15th — August 15th) 

 in order to be able to pay more attention to the language problem, and to have 

 more time available for the preliminary elaboration of the material collected, 

 and for the preparation of the manuscript of the joint publication. 



The topic for 1956 will be "A causal analysis of the development and diffe- 

 rentiation of the neural crest in Vertebrates." 



The following scientists will participate in this second international research 

 team (in alphabetical order): 



Mr R. Azoubel (B.M.). Recife, Brasil 



Miss L Buyukozer (M.D.), Ankara, Turkey 



Mr H. U. Koecke (Ph.D.), Cologne, Germany 



Mr E. Y. Mina (M.D.), Alexandria, Egypt 



Miss L Oikawa (Ph.D.), Kochi, Japan 



Miss M. Richter (B.Sc), Amsterdam, Netherlands 



Mr T. Seno (B.M.), Maebashi, Japan 



Mr P. H. S. Silver (Ph.D.), London, England 



II The Central Embryological Library (C.E.L.) 

 A Exchange of reprints 



The number of reprints of publications of the Hubrecht Laboratory available 

 for distribution is bound to certain limits. Therefore only institutes and 

 scientific teams can be placed on our maling list. 

 Unfortunately exchange with individual investigators is generally impossible. 



B Services rendered by the C.E.L. ; conditions for borrowing 



1 . Every embryologist can ask for information about literature of 

 certain authors, for surveys of literature on certain subjects (according 

 to the classification-system of the G.E.I.S.), for surveys of newly 

 published literature, etc. 



2. Every embryologist can borrow reprints which are not available 

 in his own country. Books and Normal tables are usually not lent out, 

 volumes of periodicals are only lent out to investigators in the Nether- 

 lands. 



Conditions: 



a. Reprints may be borrowed for 3 months at the utmost (for the 

 Netherlands 1 month), time for shipment not included. 



b. The receipt added to the consignment must be returned by return 

 of post, after having been controlled and signed. 



c. In case of high forwarding charges these have to be partly carried 

 by the applicant. 



3. Every embryologist can personally consult the C.E.L. at all 



times. 



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