RAWLES (SPURBECK), Mrs. M. E. Ph.D. — Dept. of Embryol.. Carnegie Inst, of 

 Washington. 115 W. University Parkway. BALTIMORE, Md. 21210. U.S.A. 



SLAB?, O. D.Sc. Prof. — temporarily: Cite Jean de la Fontaine, La Tour. ORAN. Algeria 



SUBTELNY, S. Ph.D., Prof. — Dept. of Biol., Rice Univ., HOUSTON, Tex. 77001, U.S.A. 



WURMBACH, H. Dr., Prof. — Inst, fiir Landwirtsch. Zool. und Bienenkunde der Univ., 

 Melbweg 5, 53 BONN, Bundesrepublik Deutschland 



ZUCKERMAN, Sir S. M.D., D.Sc, Prof. — The Zool. Soc. of London. Regent's Park, 

 LONDON N.W.I. England 



