7e etage, 7 quai Saint-Bernard, 75230 PARIS Cedex 05, France 

 a Surface and vasculature of placenta 

 THIRIOT-QUlltVREUX, Ms. C; D.Sc. - Stat. Zool., Univ. de Paris VI, 06230 VILLEFRANCHE-sur- 



MER, France 

 a Anatomy and histology of planktonic larvae before and after metamorphosis; scanning electron 



microscopy of their shells. Mesogastropoda, Stenoglossa (Gastropoda) 

 THOMAS, C. - Dept. of Molec. Biol., Free Univ. of Brussels, 67 rue des Chevaux, 1640 RHODE-ST- 



GENfeSE, Belgium 

 a Regulation of ribosomal RNA synthesis in oocytes and eggs. Xenopus laevis (Anura) 

 THOMAS, D. B.; Prof. - Dept. of Anat., Univ. of St Andrews, St Salvator Coll., Bute Med. Bldgs., ST 



ANDREWS KY16 9TS, Fife, Scotland, U.K. 

 THOMSON, I. - Inst, of Anim. Genet., Univ. of Edinburgh, West Mains Rd., EDINBURGH EH9 3JN, 



Scotland, U.K. 

 a Properties of lens mRNAs; regulation of stability. Gallus domesticus (Aves) (with R. M. 



CLAYTON, D. E. S. TRUMAN, J. JACKSON (Edinburgh), and R. WILLIAMSON (London) 

 THORIG, G. E. W.; Drs. - Dept. of Popul. and Evol. Biol., Genet. Inst., State Univ., Transitorium III, 



Padualaan 8, UTRECHT, Netherlands 

 THOROGOOD, P.; Ph.D. - ZooL Dept., Univ. of Oxford, South Parks Rd., OXFORD 0X1 3PS, 



England 

 a Skeletal stem cells and the differentiation of skeletal tissues. Gallus domesticus (Aves) 

 b Ectopic chondrogenesis and osteogenesis. Rattus spp. (Rodentia) 

 THORS, F.; Drs. - Dept. of Anat. and Embryol., Cathol. Univ., Geert Grooteplein N.21, NIJMEGEN, 



Netherlands 

 a Development of the spinal cord. Xenopus laevis (Anura) 

 THOUVENY, Y. R.; Dr., Prof. - Lab. d'HistoL et de Morphogen. Anim., Dept. de Biol., Centre Univ. 



de Marseille-Luminy, 70 route Leon Lachamp, 13288 MARSEILLE Cedex 2, France 

 a Biochemistry and cytochemistry of regeneration; molecular mechanisms taking place during 



dedifferentiation. Owenia fusiformis (Polychaeta) 

 THYLSTRUP, A.; Ph.D., Assoc.Prof. - Dept. of Dent. PathoL and Operat. Dent., Royal Dent. ColL, 



Vennelyst Bd., 8000 ARHUS C, Denmark 

 a Development and mineralization of dental enamel from still-born infants (polarizing and light 



microscopy, microradiography, scanning and transmission E.M.). Homo sapiens (Primates) 

 b Experimentally disturbed tooth development (polarizing and light microscopy, micro- 

 radiography, scanning and transmission E.M.). Rattus spec. (Rodentia), (Primates) 

 TICKLE, Ms. C. A.; Ph.D. - Dept. of Biol, as AppL to Med., Middlesex Hosp. Med. School, Cleveland 



St., LONDON WIP 6DB, England 

 a Cellular interactions in limb morphogenesis, particularly the antero-posterior axis. Gallus 



domesticus (Aves) 

 TIEDEMANN, H.; Dr.med., Dr.rer.nat., Prof. - Inst, fiir Molec. Biol, und Biochem., Fachbereich I 



(Vorklinik), Freie Univ., Arnimallee 22, 1000 BERLIN 33, B.R.D. (Germany) 

 a Molecular mechanisms of determination. (Amphibia) 

 b Mechanism and organ specificity of transcription and translation (erythroblast, liver). Gallus 



gallus (Aves) 

 TIEDEMANN (WAECHTER), Ms. H.; Dr.rer.nat. - Inst, fur Molec. Biol, und Biochem., Fachber.I 



(Vorklinik), Freie Univ., Arnimallee 22, 1000 BERLIN 33, B.R.D. (Germany) 

 a Mechanisms of primary induction. Triturus spec, Ambystoma spec. (Urodela) 

 TIMASHKEVICH, Ms. T. B.; Cand.med.scL - Inst, of Human MorphoL, Acad, of Med. Sci. of the 



USSR, Tsurupa St. 3, MOSCOW 1 1 7469, U.S.S.R. 

 a Regeneration and cell division in the stomach. Rattus norvegicus, Mus musculus (Rodentia) 

 b Quantitative evaluation of restoration of resected stomach. Same species as a 

 TIMMERMANS, Ms. L. P. M.; Ph.D. - Dept. of Exp. Anim. Morphol. and Cell Biol., Agric. Univ., 



"Zodiac", Marijkeweg, WAGENINGEN, Netherlands 

 a Origin of primordial germ cells ((immuno) histochemistry, autoradiography). Dentalium vulgare 



(Scaphopoda), Cyprinus carpio (Teleostei) 

 TOGNATO, G.; Dr. - Inst, of ZooL, Univ. of Bologna, Via S. Giacomo 9, 401 26 BOLOGNA, Italy 

 a Gonadogenesis and sex differentiation. Rana latastei, R. esculenta (Anura) 



b Nervous system and neurosecretion in asexual reproduction, sexual differentiation and regenera- 

 tion. Dugesia gonocephala, Polycelis nigra, Dendrocoelum lacteum (Turbellaria) 

 TOIVONEN, S. I.; Ph.D., M.D., Prof. (Emer.) - Lab. of Exp. Embryol., Dept. of Zool., Univ. of 



Helsinki, Arkadiankatu 7, 00100 HELSINKI 10, Finland 

 a The specific action of heterogeneous inductors. Triturus spec. (Urodela) 

 b The mechanism of primary induction. Same species as a 

 c Cell interaction. Same species as a 

 TOKIN, B. P.; Dr.bioL, Prof. - Dept. of Embryol., Leningrad State Univ., Mendeleevsky St. 5, 



LENINGRAD 199164, U.S.S.R. 

 a Regeneration, asexual reproduction, and somatic embryogenesis. Dugesia tigrina (Turbellaria) 

 b Morphogenetic processes in starving animals. Same species as a 

 TONDURY,G.; Dr., Prof. - Dept. of Anat., Histol., and EmbryoL, Univ. of Zurich, Gloriastr. 19, 



8006 ZURICH, Switzerland 

 a Action of different viruses on embryos, pathogenesis, and way of infection. Homo sapiens 



(Primates) 

 b Development of the lymphatic system. Same species as a 

 c Pre- and postnatal development of thymus and lymphatic organs of the "nude" mutant. Mus 



musculus (Rodentia) 



102 



