STAGNI. Miss A. Dr. — 1st. di Zool., Via S. Giacomo 9, BOLOGNA, Italia 



a. Regeneration, origin of germ-cells and gametogenesis. Spirorbis pagen- 

 stecheri (Serpulidae, Polychaeta) 



b. Sex determination and sex differentiation. Chlorohydra viridissima (Hy~ 

 droidea) 



STALSBERG, H. Cand.med. — Anat. Inst., Univ. of Oslo, Karl Johansgt. 

 47, OSLO, Norway 



a. Extirpation of the epiphysis cerebri in the embryo. Gallus domesticus 

 (Aves) 



b. Hemostasis in the embryo. Gallus domesticus (Aves) 



STARCK, D. Dr.Med., F.I. I.E., Prof. — Dr. Senckenberg. Anat. Inst., Med. 



Fak. der Univ., Ludwig Rehnstr. 14, FRANKFURT/Main-Siid, Deut- 

 sche Bundesrepublik 

 STAUGAARD, B. C. A.B., M.S — Dept. of Zool., Univ. of Connecticut, 



STORRS, Conn., U.S.A. 

 a. Morphogenesis and function in embryonic kidney. Gallus domesticus 



(Aves), Mus musclus (Rodentia) 

 STEDING, G. cand.med. — Anat. Inst, der Univ., Kreuzbergring 36, GoT- 



TINGEN, Deutsche Bundesrepublik 

 a. Experimente zur Entwicklung des Ruckenmarkes. Gallus gallus (Aves) 

 STEFAN, Miss Y. Lie. es Sci. — Lab. de Zool. et d'Embryol. exper., Inst. 



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



France 

 a. Morphogenese du tractus genital et des gonades. Emys lepvosa (Chelo- 



nia) , (Ophidia) 

 STEFANELLI, A. Dr., F.I. I.E., Prof.ord. — 1st. di Anat. comp. "G. B. 



Grassi", Fac. di Sci., Univ. di Roma, Via Borelli 50, ROMA, Italia 



a. Histogenetic determination and differentiation of nervous cells. (Te~ 

 leostei; Amphibia; Aves) 



b. Degeneration and regeneration of nervous cells. (Teleostei; Amphibia; 

 Aves) 



c. Social behaviour of cultivated cells. (Amphibia; Aves) 



d. Correlated and partial movements of spermatozoa. (Amphibia; Aves) 



e. Cytochemistry of development and regeneration. (Amphibia; Aves) 



f . Antimitotic action on in vitro explanted organs. Gallus domesticus 

 (Aves) 



g. Factors of nervous fibre orientation in vitro. Gallus domesticus, 

 Coturnix cotutnix japonica (Aves) 



STEFANOVA, Miss Z. Dr. — Dept. of Gener. and Exper. Zool., Zool. 

 Inst, of Charles Univ., Vinicna 7, PRAHA 2, Czechoslovakia 



a. Hybridization and heteroploidy. (Anura) 



b. Transplantation of nuclei and cytoplasmic components. (Amphibia) (in 

 collaboration with F. SLADEcEK) 



STEGNER, H.-E. Dr.Med. — Frauenklinik der Universitat, Universitats- 

 Krankenhaus Eppendorf, Martinistr. 52, HAMBURG 20, Deutsche Bun- 

 desrepublik 



a. Histopochemische und elektronenmikroskopische Untersuchungen an 

 Oozyten verschiedener Reife. Homo sapiens (Primates) (in Zusammen- 

 arbeit mit H. WARTENBERG) 



b. Organogenese des weiblichen Genitaltraktes; histopochemische und elek- 

 tronenmikroskopische Untersuchungen. Homo sapiens (Primates) 



133 



