Ste-Str 



STEIN, Miss K. F. A.B., M.S., Ph.D. — Dept. of Zool, Mount Holyoke 

 Coll., SOUTH HADLEY, Mass., U.S.A. 



a. Development of an abnormal homozygote due to the looptail gene (Lp). 

 Mus musculus (Rodentia) 



b. Histochemical study of normal development and of the abnormal homo- 

 zygote LpLp. Mus musculus (Rodentia) 



c. Study of two mutations in the waltzer-shaker group. Mus musculus (Ro- 

 dentia) 



STEINBERG, D. M. Dr.Biol.Sci., Prof. — Zool. Inst., Acad, of Sci. of the 

 U.S.S.R., Universitetskaja Nabereshnaja 1, LENINGRAD B-164, 

 U.S.S.R. 



a. Potentialities of tissues in ontogenesis and phylogenesis. (Insecta) 



b. Larval development and metamorphosis of parasitic forms transplanted 

 into new hosts. Differentiation of imaginal buds and hormonal control. 

 Angitia fenestralis (Hymenoptera), transplanted from Plutella maculi- 

 pennis into Galleria mellonella 



STEINBERG, M. S. B.A., M.A., Ph.D. — Dept. of Biol., Johns Hopkins 

 Univ., Charles and 34th Sts., BALTIMORE 18, Md., U.S.A. 



a. Chemical bonds between embryonic cells. Various spp. (Amphibia) 



b. Mechanism of selective adhesion (cell affinities) in embryonic cellls. Gal- 

 lus domesticus (Aves) 



STEINER, H. Dr.Phil., Prof. — Zool.-vergl. Anat. Inst., Naturw. Fak., 

 Univ. Zurich, Kunstlergasse 16, ZURICH 6, Schweiz 



STEINITZ, H. Ph.D. — Dept. of Zool., Hebrew Univ., JERUSALEM, 

 Israel 



STENGER (HAFFEN), Mrs. K. E. 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., 49bis Avenue de la 

 Belle Gabrielle, NOGENT sur Marne (Seine), France 

 a. Recherches sur la differenciation et 1'intersexualite in vitro et in 

 vivo des gonades embryonnaires. (Aves) (en collaboration avec Et. C. 

 WOLFF) 



STEPHAN, Fr. Dr. es Sci. — Lab. de Zool. et d'Embryol. exper., Inst, de 

 Zool. et de Biol, gener., 12 Rue de l'Universite, STRASBOURG, France 



a. Formation du systeme vasculaire extraembryonnaire et son extension. 

 Developpement du coeur et des gros troncs arteriels de l'embryon. Gallus 

 gallus (Aves) 



b. Etude experimentale des anomalies et des suppleances vasculaires dans 

 l'aire extraembryonnaire et l'embryon. Gallus gallus (Aves) 



STEPHAN (DUBOIS), Mrs. F. Dr. es Sci., M.I.I.E. — Lab. de Zool. et 

 d'Embryol. exper., Inst, de Zool. et de Biol, gener., 12 Rue de l'Univer- 

 site, STRASBOURG, France 



a. Migration et differenciation des cellules de regeneration. (Planariidae 

 d'eau douce, Oligochaeta micvodrila, Polychaeta errantia) 

 STEPHENSON, Mrs. E. M. M.Sc, Ph.D. — Dept. of Zool., School of Biol. 

 Sci., Univ. of New South Wales, P.O. Box I, KENSINGTON, N.S.W., 

 Australia 



a. Study of cell relations in tissue culture. Gallus domesticus (Aves), Mus 

 musculus (Rodentia) (in collaboration with M. ABERCROMBIE, Lon- 

 don, England, and Miss D. M. LAMONT, London, England) 



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