a. Distribution of activating and transforming principles in the archenteron 

 roof of the neurula (analysis of the regional induction of the nervous 

 system). Amby stoma mexicanum (Urodela) 



b. The patterns of heterogeneous induction. Xenopus /aevis (Anura) 



c. Parabiosis. Rana esculenta x R. dalmatina (Anura) 



SALAON, Miss J. Lie. es Sci. — Lab. d'Embryol. et Teratol. exper. du 

 C.N.R.S., 49bis Avenue de La Belle Gabrielle, NOGENT sur Marne 

 (Seine), France 



— Lab. d'Embryol. exper. du Coll. de France, 1 1 Place Marcelin Ber- 

 thelot, PARIS Ve. France 



a. Formation experimental d'embryomes homoplastiques et heteroplastiques. 



Gallus gallus (Aves) , Rattus rattus (Rodentia) 

 SALFI, M. Dr.Sci.Nat., Prof. — 1st. di Zool. dell'Univ. di Napoli, Via Mez- 



zocannone 8, NAPOLI, Italia 

 SALLES, J. M. de — Inst, de Biol., Fac. Filosofia, Univ. de Minas Gerais, 



Caixa Postal 253, BELO HORIZONTE, M.G., Brazil 

 SALSER, G. M. Dr.med. — Anat. Inst., Wahringerstr. 13, WIEN 9, Oester- 



reich 

 SALTHE, S. N. B.S., M.A. — Dept. of Zool., Columbia Univ., 954 Scher- 



merhorn Hall, NEW YORK 27, N.Y., U.S.A. 



a. Mechanism of expansion of perivitelline fluid in the egg. Rana pipiens 

 (Anura) 



b. Study of the hatching enzymes. (Amphibia) 



SALZGEBER, Miss B. Dr.es Sci. — Lab. d'Embryol. et Teratol. exper. du 

 C.N.R.S., 49bis Avenue de la Belle Gabrielle, NOGENT sur Marne (Sei- 

 ne), France 



— Lab. d'Embryol. exper. du Coll. de France, 1 1 Place Marcelin Ber- 

 thelot, PARIS Ve, France 



a. Recherches sur Taction d'agents physiques et chimiques sur la differen- 

 ciation sexuelle. 



b. Action de substances chimiques sur les gonades embryonnaires culti- 

 vees in vitro. 



c. Etude sur les associations de gonades embryonnaires de deux classes. 

 Gallus spec. (Aves), Mus spec. (Rodentia) 



d. Etude des effets teratogenes (malformations de membres) obtenues 1) 

 par l'yperite azotee (chlorethylamine), 2) par la thalidomide (phtalimi- 

 doglutarimide). Gallus spec. (Aves) 



SALZMANN, R. Ph.D. — Dept. of Cell Biol, and Chem. Embryol., Zool. 

 Inst., Univ. of Bern, Sahlistr. 8, BERN, Switzerland 

 a. Primary effects of thyroxine on larval tails. Xenopus laevis (Anura) 

 (in collaboration with R. WEBER) 



SAMANO BISHOP, Miss A. Dr. — Inst, de Biol., Ciudad Universitaria, 

 MEXICO D.F., Mexico 



SAMBUICHI, H. D.Sc. — Zool. Lab., Fac. of Sci., Hiroshima Univ., Higa- 

 shisenda-cho, HIROSHIMA, Japan 

 a. The effect of irradiation with y- and UV-rays on the nucleus and cyto- 

 plasm of eggs. Rana nigromaculata (Anura) 



SANCHEZ. J. — Inst, de Biol. Celular, Univ. Nacional de Cordoba, Casilla 

 Postal 362, CORDOBA, Argentina 



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