a Changes of mitotic cycle in early embryogenesis as related to changes in ionic concentrations and 



intercellular communication. Misgurnus fossilis, Salmo gairdneri, Cyprinus carpio (Teleostei), 



Ambystoma mexicanum (Urodela) 

 ROUSSEAU-MERCK, Ms. M. F.; Dr. 3e Cycle - Groupe de Rech. de Pathol. Pediat., INSERM U77, 



Hopital Necker Enfants Malades, 149 rue de Sevres, 75730 PARIS Cedex 15, France 

 a La differenciation et les potentialites de differenciation du nephroblastome, Homo sapiens 



(Primates): 1. associations in vitro avec des organes embryonnaires de Gallus domesticus (Aves) 



ou Mus musculus (Rodentia) inducteurs de I'organogenese renale normale; 2. mise en evidence 



d'antigenes particuliers aux tubes proximaux renaux 

 ROUSSEL, C; Dr.Med. - Lab. d'EmbryoL, U.E.R. Biomed., 45 rue des Sts.Peres, 75270 PARIS 



Cedex 06, France 

 a Mode d'action de certaines substances teratogenes (Triton WR 1339). (Mammalia) 

 b Mecanismes d'action de substances embryotoxiques (transfert d'oeufs). (Rodentia) (avec 



L. MERCIER) 

 ROUSSEV, G. K.; Dr., Prof. - Med. Res. Inst., Ovtcha Koupel, SOFIA 18, Bulgaria 

 ROUX, Ch.; Dr.Med., Prof. - Lab. d'Embryol. et de Cytogenet., Fac. de Med. Saint-Antoine, 27 rue 



Chaligny, 75571 PARIS Cedex 12, France 

 a Teratogenetic action of inhibitors of cholesterol synthesis. Rattus spec, Mesocricetus auratus, 



Mus musculus (Rodentia), Oryctolagus cuniculus (Lagomorpha) 

 b Teratogenesis by irradiation. Rattus rattus (Rodentia) 

 ROWSON, L. E. A.; F.R.C.V.S., - A.R.C. Unit of Reprod. Physiol, and Biochem., Anim. Res Station, 



307 Huntingdon Rd., CAMBRIDGE CB3 OJQ, England 

 RUANO GIL, D.; Dr., Prof. - Dept. of Anat., Univ. of Barcelona, C/.Casanova 143, BARCELONA 1 1 , 



Spain 

 a Development of neural retina and lens. Gallus domesticus (Aves) 

 b Development of the ureter 



c Experiments on the development of the joints. Same species as a 

 RUBTSOV, V. V. - A. N. Severtzov Inst, of Evol. Morphol. and Ecol. of Animals, Acad, of Sci. of the 



USSR, Lenin Ave. 33, MOSCOW 117071, U.S.S.R. 

 a Electron microscopy of egg membrane structure. (Teleostei) 

 RUCH, J. v.; Dr.Med., D.Sc, Prof. ~ Inst. d'Embryol., Univ. de Strasbourg, 4 rue Kirschleger, 67085 



STRASBOURG Cedex, France 

 a Epithelial-mesenchymal interactions, mitosis, and differentiation in teeth. Mus musculus 



(Rodentia) 

 RUNN, P.;FiLkand. - Inst, of ZooL, Uppsala Univ., Box 561, 751 22 UPPSALA, Sweden 

 a Morphological aberrations in embryos exposed to pollutants. (Teleostei) 

 RUSSO-CAIA, S.; Prof. - II. Chair of Histol. and Embryol., Fac. of Sci., Univ. of Roma, Citta 



Universitaria, 00100 ROMA, Italy 

 a Cytochemistry and autoradiography of mesonephros regression. (Aves; Mammalia) 

 b Mechanism of metamorphosis: histolysis, especially lysosomal enzymes. Musca domestica 



(Diptera) 

 c Ultrastructural observations on the presence of juxtaglomerular cells in the embryonic kidney. 



Same species as a 

 d Cytochemistry and autoradiography of oogenesis, especially nucleic acid metabolism in nurse 



cells. (Diptera; Coleoptera) 

 e Cytochemistry of lymphatic organs, (lower Vertebrata) 



RUSU, Ms. V. M. - Biol. Res. Ctr., Str. Repubhcii No. 48, 3400 CLUJ-Napoca, Rumania 

 a Influence of unusual incubation temperature on development of antibody forming cells. Gallus 



spec. (Aves) 

 RYABININA, Ms. Z. A.; Cand.biol.sci. - Inst, of Human Morphol., Acad, of Med. Sci. of the USSR, 



Tsurupa St. 3, MOSCOW 117469, U.S.S.R. 

 a Regeneration of inner organs. Mus musculus, Rattus norvegicus (Rodentia) 

 RYBERG, Ms. E.;M.Sc. - Wenner-Gren Inst, for Exp. Biol., Norrtullsgatan 16, 113 45 STOCKHOLM, 



Sweden 

 a Histochemistry and histology of an impulse conducting system in the pluteus. Psammechinus 



miliaris (Echinoidea) 

 RYCZKOWSKI, M.; Doc, Dr. - Lab. of Plant Physiol., Inst, of Molec Biol., Jagellonian Univ., 



Grodzka 53, 31-001 KRAK(3W, Poland 

 a Respiration rate (Q02) of the developing fruit, ovule, embryo, coat and endosperm tissue in 



different environments. (Angiospermae) 

 b Quantitative and qualitative changes of the pigments in the developing embryo. (Angiospermae) 

 c Concentration gradients of low molecular compounds in the developing ovule. (Angiospermae) 

 RYFFEL, G. U.; Ph.D. - Div. of Cell and DevL BioL, Zool. Inst., Univ. of Bern, Sahlistr. 8, 3012 



BERN, Switzerland 

 a Regulatory mechanism of estrogen-dependent synthesis of vitellogenin. Xenopus laevis (Anura) 



(with R. WEBER) 

 RYLAND, J. S.; Ph.D. - Dept. of ZooL, Univ. Coll. of Swansea, Singleton Park, SWANSEA, 



Glamorgan, Wales, U.K. 

 RZEHAK, K.; Ph.D. - Dept. of Biol, and Embryol., Med. Acad., ul.Kopernika 7, 31-034 KRAKOW, 



Poland 

 a Movements of pigment and cytoplasm after fertilization. (Anura) (with G. A. UBBELS, Utrecht) 

 b Cytokinesis of cleaving eggs. (Amphibia) 

 c Teratogenic effects of insecticides. (Anura) 



89 



