CONTENTS 



a) Introduction P- 5 



b) Changes of address, and new addresses of collaborators ... p. 7 



c) "Supply and Demand" Service for laboratory animals .... p. 10 



d) Communications from the Hubrecht Laboratory p. 15 



I The Hubrecht Laboratory p. 15 



II The Central Embryological Library and the 



Central Embryological Collection p. 15 



e) Communications of the "Institut International d'Embryologie" 

 (Embryological Section of the I.U.B.S.) p. 16 



f) Announcements of recently published books on development 



and related subjects p. 18 



