Sedra-Shi 



b. The development of the nasal capsules. Bufo regularis (Anura) (in col- 

 laboration with M. I. MICHAEL) 



c. Behaviour of egg laying. Rana fusca, Bufa regularis (Anura) 

 SEGAL, S. J. M.S., Ph.D., M. I. I.E. — Population Council, Rockefeller Inst. 



for Med. Research, 66th St. and York Ave., NEW YORK 21, N.Y., 



U.S.A. 

 SEIDEL, F. Dr.Phil., o.Prof. — Zool. Inst, der Univ., Ketzerbach 63, (16) 



MARBURG/Lahn, Deutschland 

 SEKIGUCHI, K. Ph.D. — Inst, of Zool., Univ., of Education, Otsuka- 



Kubomachi 24, Bunkyoku, TOKYO, Japan 

 a. Regulation in the developing egg. Tachypleus tridentatus (Xiphosura) 



(in collaboration with H. OKA) 

 SELMAN, G. G. B.Sc, Ph.D. — Inst, of Animal Genet., Univ. Dept. of 



Genet., King's Buildings, West Mains Road, EDINBURGH 9, Scotland 



a. Some measurements of morphogenetic forces and the mechanical proper- 

 ties of the tissue concerned. (Amphibia) 



b. Study of certain features of developing embryos using electronmicro- 

 graphs. (Diptera), (Amphibia) (in collaboration with C. H. WAD- 

 DINGTON and Miss M. M. PERRY) 



c. Immuno-electrophoretic studies of proteins from embryos. Triturus alpes- 

 tris (Urodela) 



SEMBRAT, K. Ph.D., D.Sc, Prof. — Zaklad Zool. Ogolnej, Inst. Zool., 

 Uniw. we Wroclawiu, ul. Sienkiewicza 21, WROCLAW, Poland 



a. Descriptive and experimental embryology. Sagartia leucolena (A.nthozoa) 



b. Localization of the primary gonocytes in the early gastrula. (Amphibia) 



c. The morphogenetical functions of the thyroid gland and hypophysis. 

 (Pisces, Amphibia, Reptilia, Aves) 



d. Regulation and regeneration of the primary optic vesicle. Triturus spec. 

 (Urodela) 



SEMBRATOWA, Mrs. Z. OPOCZYnSKA M.D., Prof. — Zaklad Histol. 



i Embryol., Akad. Medycznej, Chalubinskiego 6a, WROCLAW, Poland 

 SENGEL, Miss C. Lie. es Sci. — Lab. d'Embryol. exper. du Coll. de France, 



11 Place Marcelin Berthelot, PARIS Ve, France 



— Lab. d'Embryol. te Teratol. exper. du C.N.R.S., 49 bis Avenue de la 

 Belle Gabrielle, NOGENT sur Marne (Seine), France 



a. Mise au point d'une technique de culture in vitro d'organes et de 

 tissus en voie de regeneration, en adaptant la methode de Et. C. Wolff 

 et K. Haffen. Dugesia lugubris (Turbellaria) 

 SENGEL, Ph. Dr. es Sci. — Lab. d'Embryol. exper. du Coll. de France, 1 1 

 Place Marcelin Berthelot, PARIS Ve, France 



— Lab. d'Embryol. et Teratol. exper. du C.N.R.S., 49 bis Avenue de la 

 Belle Gabrielle, NOGENT sur Marne (Seine), France 



a. Pigmentation de la peau d'embryon cultivee in vitro sur milieux 

 naturels et synthetiques. Gallus gallus (Apes) 



b. Analyse in vitro des roles du derme et de l'epiderme dans la diffe- 

 renciation des germes plumaires chez l'embryon. Gallus gallus (Aves) 



c. Etude de Taction de divers extraits d'organes sur la differenciation et la 

 croissance de la peau et des germes plumaires. Gallus gallus (Aves) 



SENO, T. — Dept. of Anat., School of Med., Gunma Univ., MAEBASHI, 

 Japan 

 a. Origin of the ventral body-wall. Gallus domesticus (Aves) 



112 



