12 



The supply of Aves and Mammalia is covered by the "International Com- 

 mittee on Laboratory Animals" (Hon. Executive Seer.: Dr. W. Lane-Petter, 

 Laboratory Animals Centre. M.R.C. Laboratories, Woodmansterne Road, 

 Carshalton, Surrey, England). 



■*) in exchange for Ambystoma tigrinum, A. punctatum. 



^) in exchange for Xenopus laevis, Anolis carolinensis. 



*) in exchange for Rana esculenta, Trituru.-> vulgaris. 



^^) in exchange for Hyla (fixed stages). 



B. LIST OF NAMES AND ADDRESSES 



(geograpnical order) 



AFRICA 

 Egypt 



1. DEPT OF ANATOMY. Fac. of Med.. ALEXANDRIA 



N. AMERICA 

 Canada 



2. DEPT OF ZOOLOGY, Univ. of British Columbia, VANCOUVER 8. 

 B.C. 



United States 



3. SHANKLIN BIOL. LAB., Wesleyan University, MIDDLETOWN. 

 Conn. 



* Biological Supply f-fouses, Zoological Collectors, etc. 



1 



