V The Central Embryological Library 



A The reprint library 



During the next two years the reprint library, at present comprising about 

 25.000 titles, will be subjected to an internal reorganisation. This will include 

 some adaptive changes in the system of classification, which will make it 

 practically identical to that to be used henceforth in the "General Embryological 

 Information Service" (cf. the Introduction of the present issue). It is hoped to 

 finish this project before moving into the new building. 



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 (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 given on 

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

 lands. 



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 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. 



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 Concise Catalogue 



Copies of the "Concise Catalogue" of the Collection, which was issued in 

 1953, are still available on request. 



B Loan conditions 



Conditions: 



1. Slides, material in paraffin and/or material in alcohol can only be bor- 

 rowed for o n e y e a r, after which it has to be returned automatically 

 if no special request for extension of the loan has been made by the 

 investigator, and has been approved by the staff of the Hubrecht Labor- 

 atory. 



2. Material in alcohol or paraffin has to be returned as such or in the form 

 of well prepared slides which have been sectioned, stained 

 and embedded properly, clearly labeled (name of species, thickness and 

 direction of sectioning, method of staining, etc.) and numbered according 

 to given indications. 



3. Costs of transport may be charged if these exceed reasonable limits. 



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