b Electron microscopy of induction systems. Hyla regilla (Anura) 



c Development of photoreceptors. Helix aspersa (Gastropoda) (and other Invertebrafa) 



EAYRS, J. T. Ph.D.. D.Sc, Prof. — Dept. of Neuroendocrinol.. Inst, of Psychiatry. The 



Maudsley Hosp.. Denmark Hill. LONDON S.E.5. England 

 a Effects of hormones on central nervous development. (Rodenfia) 



• EBERT, J. D. Ph.D.. Prof. — Dept. of Embryol.. Carnegie Inst, of Washington. 115 W. 



University Parkway, BALTIMORE, Md. 21210, U.S.A. 



— Dept. of Biol.. Johns Hopkins Univ.. Charles and 34th Sts.. BALTIMORE, Md. 21218. 



U.S.A. 

 a The metabolic characteristics of the heart-forming areas of the early embryo. Gallus gallus 



(Aves) 

 h The graft-versus-host reaction and development of immune mechanisms in the embryo. 



Gallus gallus (Aves) 

 c Animal viruses (esp. tumor viruses) as tools in studying embryonic development. Gallus 



gallus (Aves) (in collaboration with M. E. KAIGHN and H. H. LEE) 

 ECHAVE LLANOS. J. M. M.D.. Prof. — Cat. "B" de Embriol., Biol, e Histol., Fac. de 



Cienc. Med.. Univ. Nac. de La Plata, 60 y 120. LA PLATA, Argentina 

 a Liver regeneration; experimental factors influencing the scatter of values; control of 



growth by tissue factors. Mus musculus (Rodentia) 

 ECKSTEIN, P. D.Sc — Dept. of Anat., Med. School, Univ. of Birmingham, Edgbaston. 



BIRMINGHAM 15, England 

 a Mode of action of intra-uterine devices: 1. ovum recovery at critical stages of primate 



cycle. 2. tubo-uterine motility. 3. tissue reactions to intra-uterine materials. Oryctolagus 



cuniculus, Cavia porcellus, Macaca mulatta (Mammalia) 



• EDDS. M. v., Jr. Ph.D.. Prof. — Dept. of Biol., Brown Univ., PROVIDENCE, R.I. 



02912. U.S.A. 

 EDE. D. A. Ph.D. — A.R.C. Poultry Research Centre. King's Buildings, West Mains Rd.. 



EDINBURGH 9, Scotland, U.K. 

 a Analysis of the action of inherited abnormalities and lethal genes in development. Gallus 



gallus (Aves) 

 b Experimental studies on limb bud development. Gallus gallus (Aves) 

 c Cell adhesion and movement, and cell death and degeneration in normal and mutant 



embryos. Gallus gallus (Aves) 

 EDIDIN, M. A. Ph.D. — Dept. of Biol., Johns Hopkins Univ., Charles and 34th sts., BAL- 

 TIMORE, Md. 21218, U.S.A. 

 a Development of transplantation antigens; role of the H-2 antigens in cell social behaviour. 



Mus musculus (Rodentia) 

 EDSTROM, J.-E. — Dept. of Histol., Univ. of Umea, UMEA, Sweden 

 EFFANGE, Miss D. L. Sc.B. — Dept. of Zool. and Comp. Anat., Univ. Coll. London, Gower 



St., LONDON W.C.I, England 

 a The effects of cell density on mitosis in tissue culture. Gallus gallus (Aves) 

 EGAMI, N. Ph.D. — Div. of Biol., Nat. Inst, of Radiol. Scis, Anagawa 4-9. CHIBA, Japan 

 a Change in radiation-sensitivity during embryonic development. Ovyzias latipes (Teleostei) 

 b Embryology of endocrine organs. Oryzias latipes (Teleostei) 

 c Effect of ionizing radiation on embryos. Oryzias latipes (Teleostei) 

 EGELHAAF, A. Dr.rer.nat., Prof. — Zool. Inst, der Univ., Weyertal 119, KOLN-Lindenthal, 



Deutsche Bundesrepublik 

 a Genetische Grundlagen der Differenzierung von Augenpigmenten. Ephestia kiihniella 



(Lepidoptera) 

 h Morphogenetische Genwirkungen. Ephestia kiihniella (Lepidoptera), Drosophila melano- 



gaster (Diptera) 

 c Genetik und Physiologic der Blutproteine im Entwicklungsverlauf. (Insecta) 

 EGUCHI, G. D.Sc. — Biol. Inst., Fac. of Sci., Nagoya Univ., Chikusa-ku, NAGOYA, Japan 

 a Histochemical and electron microcopic studies on lens regeneration. Cynops pyrrhogasfer. 



Hynobius spec. (Urodela) 

 b Organ culture of pigmented epithelium of iris and retina. (Amphibia) 

 c Cellular and subcellular studies on retina regeneration. Cynops pyrrhogaster (Urodela) 

 EHN, J. A. Fil.Dr. — Zool. Inst., Univ. of Uppsala, Villavagen 9, UPPSALA, Sweden 

 a Effects of sulphydryl-blocking and other substances on development of the embryo. 



Agelena labyrinthica (Arachnoidea) 

 h Animalization and vegetalization of the embryo by means of chemical agents. Agelena 



labyrinthica (Arachnoidea) 

 EICHEV, Miss E. M. Ph.D. — Dept. of Biol., Coll. of Arts and Sci., Univ. of Rochester, 



ROCHESTER, N.Y. 14627, U.S.A. 

 a Influence of nucleic acid analogues on development. Anagasta (=Ephestia) kiihniella 



(Lepidoptera) 

 b Development of enzymes and proteins. Anagasta ( = Ephestia) kiihniella (Lepidoptera) 

 c Developmental consequences of chromosome rearrangements. Mus musculus (Rodentia) 



45 



