Staff members for the other research units will be appointed in the near 

 future. 



Dr. D. O. E. Gebhardt left the staff in August 1963. 



IV Guest workers 



Mr. B. R. Rao, M.Sc. (Baroda, India) came to the Laboratory in October 

 1962 for a stay of several years, during which he will carry out experiments 

 to elucidate pattern formation in the chick brain, in preparation for the Ph.D. 

 degree. 



Dr. P. H. Tuft (Edinburgh) stayed at the Laboratory for some weeks in 

 July 1963 to study slides from the Central Embryological Collection pertinent 

 to choroid plexus formation in Xenopus laevis. 



V Th e Central Embryological Library 

 A The reprint library 



The reorganization of the reprint library mentioned in the two previous 

 issues has been completed. In the new building ample space is provided for 

 the reprint collection for about 15 years to come, notwithstanding the steady 

 increase in the numbers of reprints received (at present more than 3.000 

 yearly). 



B Services rendered by the C.E.L.; loan conditions 



1. Every embryologist can ask for information about literature 

 of certain authors, for surveys of literature on certain subjects (accord- 

 ing 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 avail- 

 able in his own country. Books and Normal Tables are usually not 

 given on loan, volumes of periodicals are only lent to investigators in 

 the Netherlands. 



Conditions: 



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

 Netherlands 1 month), time for shipment not included. 



b. The receipt added to the consignment must be returned by r e t u r n 

 of post, after having been checked and signed. 



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

 the applicant. 



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

 times. 



4. The C.E.L. will be at the disposal of every embryologist working at 

 the Hubrecht Laboratory. 



VI The Central Embryological Collection of slides 

 and material 



A Removal of the Collection 



In the new building a special large fire- and waterproof strong room has 

 been constructed to house the Collection, which is being moved over at 



295 



