Sll 1 LE, C. E. B.Sc. (Hons.) - Physiol. Lab., Univ. of Cambridge, CAMBRIDGE CB 2 3EG, England 

 a In vitro development of early post-implantation embryos: 1. Oxygen requirements and heart 



development; 2. Effect of vitamin E and synthetic antioxidants on vitamin E-deficient egg-cylin- 

 ders; 3. Protein uptake by the visceral yolk sac; 4. Effect of hypervitaminosis-A. Rattus norve- 



gicus, Mus musculus (Rodentia) 

 STEFANELLI, A. Dr., Prof.ord. - 1st. di Anat. Comp. 'Battista Grassf, Univ. di Roma, Via A.Borelli 



50, 00161 ROMA, Italy !SDB 



a Nervous microsystems in vitro. Gallus domesticus (Aves) 

 b Reaggregation of neuroblasts of different nature; morphology of new synapses. Gallus domesticus 



( Avcs^ 

 c Degeneration of nerve cells during metamorphosis. (Teleostei; Amphibia), Brachydanio rerio, 



Atherina mochon, Esox lucius (Teleostei), Xenopus laevis (Anura) 

 d Morphogenesis under high hydrostatic pressure. Paracentrotus lividus (Echinoidea), Rana esculen- 



ta, Bufo bufo (Anura) 

 STEGEMAN, Mrs. J. H. J. - Histol. Lab., Jan Swammerdam Inst., Univ. of Amsterdam, le Const.Huy- 



gensstr. 20, AMSTERDAM-W., Netherlands 

 STEGNER, H. E. Dr.med., Prof. - Univ.-Frauenklinik, Martinist. 52, 2 HAMBURG 20, B.R.D. 



(Germany) 

 a Ultrastructure of ovarian interstitial cells, fetal ovaries, and oocytes; oocytes culture in vitro. 



Cavia porcellus, Mus musculus (Rodentia), Oryctolagus cuniculus (Lagomorpha), Homo sapiens 



(Primates) 

 STEPHAN, F. Dr.es Sci., Prof. - Lab. de Zool., Univ. de Nancy I, Case Off. 140, 54037 NANCY 



Cedex, France 

 a Developpement du systeme vasculaire. Gallus gallus (Aves) 

 b Evolution postembryonnaire du tegument. Calliphora erythrocephala (Diptera) (avec A. M. 



Xi A I ]T7\ 



STEPHAN (DUBOIS), Mrs. F. Dr.es Sci. - Lab. de Zool., Univ. de Nancy I, Case Off. 140, 54037 



NANCY Cedex, France !SD B 



a Migration et differenciation des cellules de regeneration. (Planariidae; Oligochaeta microdrila; 



Polychaeta errantia)^ 

 b Anomalies de la regeneration. Same species as a w , 



STERBA, O. - Dept. of Morphol., Inst, of Vertebr. Zool., Czechoslov. Acad, of Sci., Kvetna 8, 



BRNO, Czechoslovakia 

 STERN (HOARE), Mrs. M. S. Ph.D. - Zool. Dept., Univ. Coll. of N.Wales, BANGOR, Caerns., Wales, 



U.K. 

 a Experimental studies in early mammalian embryos. Mus musculus, Rattus spec. (Rodentia) 

 STEVEN D. H. M.A., Vet.M.B. - Anat. School, Sub-Dept. of Vet. Anat., Univ. of Cambridge, 



Tennis Court Rd., CAMBRIDGE CB2 1QS, England 

 a Organization of placental blood vessels in relation to physiological exchange. Ovis aries (Artiodac- 



tyla), Equus caballus (Perissodactyla) 

 b Electron microscopy of placenta in relation to physiological exchange. Ovis aries, Bos taurus 



(Artiodactyla), Equus caballus (Perissodactyla) 

 STIRLING, Miss R. V. Ph.D. - Natl. Inst, for Med. Res., Mill Hill, LONDON NW7 1AA, England 

 a Comparative development of visual units recorded from optic tecta, correlating the types of 



ganglion cell responses and resting discharge with anatomical structure of the retina. Xenopus 



laevis (Anura) 

 b Regeneration and development of retino-tectal maps in the larva. Xenopus laevis (Anura) 

 c A comparative study of the development of binocular vision. Xenopus laevis (Anura), 



Ambystoma tigrinum, Triturus spec. (Urodela) 

 d The effect of altered light conditions on the development of vision in larvae and the regeneration 



of the optic nerve in adults. Xenopus laevis (Anura) 

 STOLL, R. Dr.en Med., Dr.es Sci., Prof. - Lab. de Biol, et d'Histol., Univ. de Bordeaux II, Place de la 



Victoire, 33 BORDEAUX, France 

 a Differenciation sexuelle. (Aves) 



b Physiologie des glandes endocrines embryonnaires. (Aves) 

 c Teratologie. (Aves) 

 STRAUSS, F. M.D., Prof. - Dept. of Anat., Div. of Appl. and Topogr. Anat., Univ. of Bern, 26 



Buehlst., 3012 BERN, Switzerland ISDB 



a Comparative implantation and placentation. (Prototheria and Eutheria, Mammalia) 

 b Comparative anatomy of the female reproductive system. Same species as a 

 c Skeletal chondrification in connection to teratogenesis. Homo sapiens (Primates) 

 d Early differentiation of skeletal muscles. Homo sapiens (Primates) 



STREET, H. E. D.Sc, Prof. - Bot. Labs., Univ. of Leicester, LEICESTER LEI 7RH, England 

 a Embryogenesis and organogenesis in tissue and cell cultures (biochemistry, histochemistry, 



electron microscopy). Daucus carota (Umbelliferae), Atropa belladonna, Nicotiana spp. (Solana- 



ceae) 

 b Cytodifferentiation and its hormonal control in vitro; induction of synthesis of secondary 



metabolites using mutant cell lines derived from haploid cells. Nicotiana spp., Atropa belladonna 



(Solanaceae), Acer pseudoplatanus (Aceraceae) 

 c Chloroplast differentiation and development of autotrophic growth in vitro. Nicotiana spp., 



Atropa belladonna and other spp. (Angiospermae) 

 STROEVA, Miss O. G. Dr.biol.sci. - Lab. of Developm. Cytogenet., Inst, of Developm. Biol., Acad. 



of Sci. of the USSR, Vavilov St. 26, MOSCOW 1 17334, U.S.S.R. 

 a Development and teratology of the iris and ciliary body in organ culture. Rattus norvegicus 



94 



