a Cell lineage in imaginal discs. Drosophila melanogaster (Diptera) 



b Transdetermination. Drosophila spp. (Diptera) 



STEINERT, Mrs. G.; Lic.Chem. - Dept. of Molec. Biol., Free Univ. of Brussels, 67 rue desChevaux, 



1640 RH0DE-ST-GEN£SE, Belgium 

 a Egg maturation (electron microscopy, cytochemistry). Xenopus laevis (Anura) 

 STEINMETZ, H. - Inst, fiir Genet., Univ. des Saarlandes, 66 SAARBROCKEN 11, B.R.D. (Germany) 

 a Regulation of isoenzyme loci and lethal factors. Drosophila melanogaster (Diptera) 

 STfiPHAN, P.; Dr.Sci., Prof. - Lab. de Zool., Univ. de Nancy I, C.O.140, 54037 NANCY Cedex, 



Ffance 

 a Morphogenesis of the embryonic axis. Gallus gallus (Aves) 

 b Postembryonic development of the integument. Calliphora spec. (Diptera) 

 c Role of nervous system in pharynx induction. (Turbellaria) 

 STfiPHAN (DUBOIS), Mrs. P.; Dr.Sci. ~ Lab. de Zool., Univ. de Nancy I, C.O.140, 54037 NANCY 



Cedex, Prance 

 a Migration and differentiation of regeneration cells. (Tricladida, Turbellaria; Microdrila, 



Oligochaeta) 

 St£RBA, O. - Dept. of Morphol., Inst, of Vertebr. Zool., Czechosl. Acad, of Sci., Kvetna 8, 60365 



BRNO, Czechoslovakia 

 a Prenatal development of skeleton and musculature. Muridae, Microtidae (Rodentia), Erinaceus 



spec, Sorex spec. (Insectivora) 

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



Court Rd., CAMBRIDGE CB2 IQS, England 

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



(Artiodactyla), 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 lAA, England 

 STOLE, 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 

 STRAATEN, H. W. M. van; Drs. - Vet. Anat. and Embryol. Inst., Univ. of Utrecht, Bekkerstr. 141, 



UTRECHT, Netherlands 

 a Development of cryptorchidism (histology, histochemistry, biochemistry). Sus scrofa domesticus 



(Artiodactyla) 

 STRAUSS, P.; M.D., Prof. ^ 33 Eichenrain, 3122 KEHRSATZ, Switzerland 

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

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

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



England 

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



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



(Solanaceae) 

 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. - Res. Grp. of Mech. of D iff., Inst, of Devi. Biol., Acad, of Sci. of 



the USSR, Vavilov St.26, MOSCOW 117334, U.S.S.R. 

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



(Rodentia) (with L. V. AKHABADZE) 

 b Differentiation and growth of the pigment epithelium of the retina, especially DNA synthesis, 



cell division, and mechanisms of cell polyploidization. Same species as a (with T. L. MARSHAK) 

 c Development of regional differences in neural retina and pigment epithelium (synthesis of RNA, 



electron microscopy). Acipenser stellatus, A. giildenstadti (Chondrostei) (with V. I. MITASHOV 



and E. A. BABURINA) 

 d Dependence of DNA synthesis and cell proliferation in pigment epithelium of the retina upon 



general growth factors of the eye. Same species as a (with I. G. PANOVA and T. L. MARSHAK) 

 STROM, R.; Fil.lic. - Zool. Inst., Univ. of Uppsala, Box 561, S-75122 UPPSALA 1, Sweden 

 STROMBERG, J.-O.; Ph.D. - Dept. of Syst. ZooL, Univ. of Lund, Helgonavagen 3, 223 62 LUND, 



Sweden 



no embryological work in progress 

 STRUB, S. O.; Dipl.nat. - Zool.-Vergl. Anat. Inst., Univ. Zurich, Kiinstlergasse 16, 8006 ZURICH, 



Switzerland 

 a Regeneration in imaginal discs. Drosophila melanogaster (Diptera) 

 STRUDEL, G.; Dr. Sci. - Inst. d'Embryol. et Teratol. Exper. du C.N.R.S., 49bis Av. de la Belle 



Gabrielle, 94130 NOGENT-sur-MARNE, France 

 a Developpement et teratologic de la colonne vertebrale. Gallus gallus (Aves) 

 b Biochimie et ultrastructure du cartilage vertebral, Gallus gallus (Aves) 

 c Role inducteur de la chorde et du tube nerveux; chondrogenese. Gallus gallus (Aves) 

 STURDEE, A. P.; Ph.D. - Dept. of Biol. Sci., The Polytechnic Wolverhampton, WOLVERHAMPTON 



Staffs. WVl ILY, England 

 a Cell to cell interactions during early embryonic limb development. Notophthalmus cristatus, 



Ambvstoma mexicanum (Urodela) 

 STURROCK, R. R.; M.B., Ch.B. - Dept. of AnaL, Univ. of Dundee, DUNDEE DDl 4HN, Scotland, 

 U.K. 



97 



