a. Sex differentiation, gonadogenesis. Gallus domesticus (Aves) 



b. Regulation and modification of sex differentiation. Gallus domesticus 

 (Aves) 



c. Transplantation of ovaries and testes. Gallus domesticus (Aves) 

 ETKIN, W. Ph.D., Prof. — Dept. of Anat., Albert Einstein Coll. of Med., 



Yeshiva Univ., Eastchester Rd. and Morris Park Ave., NEW YORK 61. 

 N.Y., U.S.A. 



a. Endocrine mechanisms in metamorphosis. Rana pipiens (Anura) 



b. Developmental interactions between adenohypophyseal primordium and 

 neural tissue. Rana pipiens, R. sylvatica (Anura) 



EVANNI, A. E. M. Fil.mag. — Zool. Inst., Univ. of Gothenburg, Fjarde 

 Langgatan 7B, GoTEBORG-SV, Sweden 

 a. Transplantations in the neural tube of embryos. Gallus spec. ( Aves) 

 EVANS, J. V. B.Sc, B.V.Sc, I.N.R.C.V.S., Prof. — Dept. of Physiol., Univ. 

 of New England, ARMIDALE, Australia 

 a. Development of blood system. (Ruminantia) (in collaboration with M. H. 

 BLUNT) 

 EYAL (GILADI), Mrs. H. M.Sc, Ph.D. — Dept. of Zool., Hebrew Univ., 

 JERUSALEM, Israel 

 a. The effect of chlorpromazine on embryonic development. (Amphibia) 

 EYRIES, Ch. Dr.en Med. — Lab. d'Anat., Fac. de Med., 45 Rue des Sts. 

 Peres, PARIS Vie, France 

 a. Oreille interne et complexe acoustico-facial. Homo sapiens (Primates) 

 FABER, J. Ph.D. — Hubrecht Lab. (Intern. Embryol. Inst.), p/a Universi- 

 teitscentrum "De Uithof", UTRECHT, Netherlands 



a. Experiments to test the respective roles of epidermis and mesenchyme in 

 the establishment of the morphogenetic pattern in the limb regenerate. 

 Ambystoma mexicanum (Urodela) 



b. The action of drugs on limb regeneration. Ambystoma mexicanum (Uro- 

 dela) (in collaboration with D. O. E. GEBHARDT, Rijks Inst. v. d. 

 Volksgezondheid ) 



c. Gene action and differentiation of imaginal discs. Drosophila melanogaster 

 (Diptera) 



d. Normal and hybrid development. ( Acheilognathinae, Teleostei) (in col- 

 laboration with E. K. BALON, Bratislava, J. J. DUYVENfi DE WIT, 

 Bloemfontein, J. HOLCIK, Prague, and Y. HONMA, Niigata) 



FABRO, S. — Inst, de Biol. Celular, Univ. Nacional de Cordoba, Casilla 



Postal 362, CORDOBA, Argentina 

 a. Ascorbic acid synthesis in the embryo; deletion of gulonolactone oxidase 



with differentiation. Gallus domesticus (Aves) (in collaboration with 



L. M. RINALDINI) 

 FALIN, L. I. M.D. — Dept. of Histol. and Embryol., Moscow Stomatol. 



Inst., Kaljaevskaiia 18, MOSCOW, U.S.S.R. 

 a. Cytodifferentiation and histochemistry of embryonic endocrine glands. 



Homo sapiens (Primates) 

 FANKHAUSER, G. Ph.D., F.I.I.E., Prof. — Dept. of Biol., Princeton Univ., 



Box 704, PRINCETON, N.J., U.S.A. 



a. Development of diploid and heteroploid embryos implanted under the skin 

 of adults. Tritutus spec. (Urodela) 



b. Constancy of somatic chromosome numbers. (Urodela) 



c. Biochemical comparison of diploid and polyploid larvae. (Urodela) 



49 



