ELOFF, F. C. D.Sc, Prof. — Zool. Inst., Fac. of Sci., Univ. of Pretoria, 



South Africa 

 ELSDALE, T. — Inst, of Animal Genet., Univ. Dept of Genet., King's 



Buildings, West Mains Rd, EDINBURGH 9. Scotland (U.K.) 

 a. Organ-specific transfer in embryos. (Amphibia) (in collaboration with 



J. L. SIRLIN) 

 EL SHATOURY. H. H. B.Sc, Ph.D. — Inst, of Animal Genet., Univ. Dept 



of Genet., King's Buildings, West Mains Rd, EDINBURG 9, Scotland 



(U.K.) 



a. Survey of pupal lethals. Dtosophila (Diptera) 



b. Post-embryonic development and behaviour of the blood-forming organs. 

 Dtosophila melanogaster (Diptera) 



c. Application of immune reactions to determine invisible changes in non- 

 metamorphic structures. Drosophila melanogaster (Diptera) 



d. Gastric tumours and their relation to hormonal disturbances. Drosophila 

 melanogaster (Diptera) 



e. Imaginal induction. Drosophila melanogaster (Diptera) 



f. Metamorphosis. Drosophila melanogaster (Diptera) 

 EMANUELSSON, H. Fil.Lic. — Zoophysiol. Inst.. Univ. of Lund, LUND. 



Sweden 



a. Nucleic acid gradients in the developing embryo. Gallus domesticus 

 (Aves) 



b. DNA-synthesis in the developing embryo. Gallus domesticus (Aves) 

 ENDO, Y. M.Sc. — Biol. Lab., Keio Univ.. Hiyoshi, Kohoku, YOKOHA- 

 MA, Japan 



a. A chemical study of the processes of fertilization membrane formation. 

 (Echinoidea) 



b. Electron microscopical study of the fertilization membrane. (Echinoidea) 

 ENGELBRECHT, D. van Z. M.Sc. — Zool. Inst.. Univ. of Stellenbosch. 



STELLENBOSCH, South Africa 

 a. Cranial ontogenesis. Pyromelana spec. (Aves) 

 ENGELMANN, F. Cand. Phil. — Zool. Inst, der Univ. Bern, Sahlistr. 8, 

 BERN, Schweiz 

 a. Untersuchungen der hormonalen Steuerung der Hautungen. Leucophaea 

 Maderae (Orthoptera) 

 ENGLaNDER, H. DrMed.. Dr rer. nat. — Zool. Inst, der Univ. Koln, 

 Kerpenerstr. 13, KoLN-LINDENTHAL, Deutschland 

 a. Regionalspezifische Induktion. (Urodela) 

 ERENgiN, Z. Med. Veter. Dr.. Prof. — Inst, of Histol. and Embryol.. 

 Veter. Coll. of the Univ.. ANKARA. Turkey 

 (no embryological work in progress) 

 ESTABLE, CI. F.I.I.E.. Dr, Prof. — Inst, de Investigacion de Ciencias Bio- 



logicas. Avenue Italia 3318. MONTEVIDEO. Uruguay 

 EVANS, D. R. B.S.. M.S. — Dept of Biol., The Johns Hopkins Univ.. 

 Charles and 34th Sts. BALTIMORE 18. Md, U.S.A. 

 a. The development of erupt eye and melanotic tumors. Drosophila melano- 

 gaster (Diptera) 

 EVANS. H. J. Ph.D. — Dept of Zool.. Syracuse Univ., SYRACUSE 10, 

 N.Y., U.S.A. 

 a. Action of cortisone on the developing embryo. Gallus domesticus. Rattus 

 rattus (Amniota) 



31 



