1. Selective transfer of radioactivity from grafts to homologous host 

 tissues. 



2. Fractionating and identification of organ-specific growth regulatory 

 substances (inhibitory, stimulatory). 



3. Growth regulation in normal and decapitated embryos. 



e. The graft-versus-host reaction and development of immune mechanisms 

 in the embryo. Gallus gallus (Aves) 



f. Animal viruses (esp. tumor viruses) as tools in studying embryonic 

 induction. Gallus gallus (Aves) 



ECHEVERRIA, M. — Lab. d'Anat. fonctionnelle et de Neuro-anat, Fac. de 



Med., 45 Rue des Sts. Peres, PARIS Vie, France 

 EDDS, M. V., Jr. B.A., M.A., Ph.D. — Arnold Biol. Lab., Brown Univ., 



PROVIDENCE 12, R.I., U.S.A. 

 a. Development of collagenous lamellae. Rana pipiens (Anura) 

 EDE, D. A. B.Sc, M.S., Ph.D. — Wye Coll., Near Ashford, Kent, England 



a. Developmental genetic studies. Dermestes maculatus (Coleoptera) 



b. Effects of lethal genes on embryonic development. Gallus domesticus 

 (Aves) (in collaboration with W. A. KELLY) 



c. Effects of tumour-inducing viruses on embryonic and early development. 

 Gallus domesticus (Aves) (in collaboration with W. A. KELLY) 



EDWARDS, R. G. B.Sc, Ph.D. — Nat. Inst, for Med. Research, Mill Hill, 

 LONDON N.W. 7, England 



a. The effects of antisera on fertilization and development. (Mammalia) 



b. The development of heteroploid and hybrid embryos. (Mammalia) 

 EGELHAAF, A. Dr. rer. nat. — Max Planck-Inst. fur Biol., Spemannstr. 34, 



Tubingen, Deutschiand 



a. Chemische Genwirkungen auf Augen- und Fliigelpigmente. Ephestia 

 spec, Plodia spec, Ptychopoda spec. (Lepidoptera) 



b. Stoffinventar und Enzymwirkung in verschiedenen Entwicklungsstadien. 

 Ephestia spec. (Lepidoptera) 



EGUCHI, G. B.Sc. — Biol. Inst., Fac. of Sci., Nagoya Univ., Chigusa-Ku, 



NAGOYA, Japan (Utodela) 



a. The lens regeneration in the cyclopean monster. Triturus pyrrhogaster 



b. Electron microscope studies on lens regeneration. Triturus pyrrhogaster 

 (Urodela) 



ELBERS, P. F. Ph.D. — Centrum voor Electronenmicroscopie, Janskerkhof 

 3, UTRECHT, Holland 



a. Electron microscopical investigation on growth and differentiation of the 

 egg. Limnaea stagnalis (Gastropoda) 



b. Electron microscopical investigation on the influence of Li ions on the 

 egg. Limnaea stagnalis (Gastropoda) 



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

 Sweden 



a. DNA-synthesis in the early embryo. Gallus domesticus (Aves) 



b. Growth regulation in the early embryo. Gallus domesticus (Aves) 



1. Effects of temperature shocks. 



2. Effects of added organ-specific RNA. 



3. Effects of mitosis-inhibitors. 



ENDO, Y. M.Sc — Biol. Lab., Keio Univ., YOKOHAMA, Hiyoshi, Japan 



a. Electron microscopical study of fertilization. (Echinoidea) 



b. A study of the fertilization membrane. (Echinoidea) 



37 



