Ebcrt-Eva 



a. Biochemical nnd immunochemical analysis of the synthesis and distribu- 

 tion of the contractile proteins, actin and myosin, in the development of 

 the heart in the early embryo. Galliis galliis (Arcs) (in collaboration 

 with R. F. RUTH) 



b. Immunological studies of melanogenesis; immunochemical properties of 

 the melnnins. mclnnoproteins. The chemistry of the pigment-forming 

 area in the early embryo. Galliis galhis (Aves) 



c. Analysis of the effects of adult or late embryonic tissue transplants on 

 homologous tissues of the host embryo. Gallus galliis (Aves) 



1. Effects on synthesis of dcsoxyribosenucleic acid and proteins, (in 

 collaboration with B. H. JOHNSON) 



2. Selective transfer of radioactivity from grafts to homologous host 

 tissues, (in collaboration with A. M. MUN) 



d. Amino acid and peptide metabolism of the early embryo. Gallus gallus 

 (Ares) (in collaboration with M. A. DAWSON) 



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

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

 a. Study of factors influencing the collateral regeneration of intact axons 



in partially denervated muscles. Mus norvegiciis albinus (Rodentia) 

 h. Study of factors influencing the diameter of nerve fibers. Mus norvegi- 

 cus albinus (Rodentia) 

 EDE, D. A. B.Sc. M.S.. Ph.D. — Dept of Zool.. Univ. of Edinburgh, West 

 Mains Rd. EDINBURGH 9. Scotland (U.K.) 

 a. Study of the developmental effects of embryonic lethal mutations. 



Drosophila melanogaster (Diptera) 

 h. Experimental study of normal embryology. Drosophila melanogaster 

 (Diptera) 

 EDWARDS. L. F. B.S.. M.Sc. Ph.D.. Prof. — Dept of Anat., Ohio State 



Univ.. COLUMBUS 10. Ohio. U.S.A. 

 EDWARDS, R. G. B.Sc.Agric, B.Sc.Zool.. Dip. Genet. — Inst, of Animal 

 Genet.. Univ. Dept of Genet.. King's Buildings. West Mains Rd, 

 EDINBURGH 9. Scotland (U.K.) 



a. Hetcroploidy and parthenogenesis, operations on embryos. Mus musculus 

 (Rodentia) and Oryctolagus cuniculus (Lagomorpha) 



b. Relations between sperms and eggs at fertilization. Mus musculus (Ro- 

 te ntia) 



c. Investigation of early embryonic development using radioactive tracers. 

 Mus musculus (Rodentia) (in collaboration with J. L. SIRLIN) 



EEDEN. J. A. van M.Sc. D.Sc. — Dept of Zool.. Potchefstroom Univ.. 

 POTCHEFSTROOM. South Africa 

 (no cmbryological work in progress) 



ELBERS. P. F. M.Sc. — Zool. Lab. der Rijks Univ.. Janskerkhof 3, 

 UTRECHT. Holland 

 a. Electron microscopical investigation on growth and differentiation of the 

 egg. Limnaea stagnalis (Gastropoda) 



ELLIS. R. — Dept of Anat., Harvard Univ.. Med. School. 25 Shattuck St, 

 BOSTON 15. Mass.. U.S.A. 

 a. The cytology, histochemistry and electron microscopy of the granular 

 cells of the metrial gland of the gravid female. Rattus norreqicus (Roden- 

 tia) (in collaboration with L. B. WEISS, M. BURGOS and G. B. 

 WISLOCKI) 



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