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 (Lagomorohal 

 ROUY (GRABlfi), Mrs. S.; Dr.spec. - Lab. d'HistoL et d'Embryol., Univ. de Montpellier, 2 rue Ecole 



de Medecine, 34000 MONTPELLIER, France 

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



307 Huntingdon Rd., CAMBRIDGE CB3 OJQ, England 

 a Ovum transplantation and artificial insemination. Oryctolagus cuniculus, vLagomorpha), Bos 



taurus, Ovis aries, Sus domesticus (Artiodactyla) Homo sapiens (Primates) 

 RUANO GIL, D.; Dr., Prof. - Dept. of Anat., Univ. of Barcelona, C/.Casanova 143, BARCELONA 11, 



Spain 

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

 b Development of the ureter 

 RUCH, J. v.; Dr.med., Dr. Sci., Prof. - Inst. d'Embryol., Univ. de Strasbourg, 4 rue Kirschleger, 



67085 STRASBOURG, France 

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



(Rodentia) 

 RUOSLAHTI, E. ^ Lab. of Exp. EmbryoL, III.Dept. of Pathol., Univ. of Helsinki, Haartmaninkatu 3, 



00290 HELSINKI 29, Finland 

 a Cell surface antigen localization in differentiation and malignancy of embryonic fibroblasts. 



Gallus domesticus (Aves) (with J. J. WARTIOVAARA and A. VAHERI) 

 RUSSO-CAIA, S.; Prof. - 11. 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 Cytological aspects of gene amplification in oogenesis. Dytiscus marginalis and other spp. 



(Coleoptera) 

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



cells. (Diptera; Coleoptera) 

 e Cytochemistry of lymphatic organs, (lower Vertebrata) 

 RYABININA, Miss Z. A.; Cand.bioLscL - Inst, of Human Morphol., Acad, of Med. Sci. of the USSR, 



Shchepkin St. 61/2, MOSCOW 125110, U.S.S.R. 

 RYBERG, Mrs. 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 KRAK6W, Poland 

 a Respiration rate (Q02) of the components of the developing ovule (coat, endosperm, embryo). 



(Angiospermae) 

 b Q02 gradient in endosperm and embryo during exponential growth. Haemantluis katharinae, 



Clivia spp. (Amaryllidaceae) 

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

 d Concentration gradients of low molecular compounds in the developing ovule. Same species as b 

 RYFFEL, G.; Ph.D. - Div. of Cell and Developm. Biol., Zool. Inst., Univ. of Bern, Sahhst.8, 3012 



BERN, Switzerland 

 a Thyroxine and RNA synthesis in tadpole tissues. Xenopus laevis (Anura) (with R. WEBER and 



G. MOILLIET) 

 b Analysis of niRNA in oocytes and differentiated tissues. Same species as a (with R. WEBER and 



G. MOILLIET) 

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



Glamorgan, Wales, U.K. 

 a Vitellogencsis and pseudoplacental development. Bugula and other spp. (Bryozoa) 

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



Poland 

 a Movements of pigment and cytoplasm after fertilization. (Anura) 

 b Cytokinesis of cleaving eggs. (Amphibia) 

 SAAG, P. T. van der; Ph.D. - Hubrecht Lab. (Intern. Embryol. Inst.), Uppsalalaan 8, "De Uithof, 



UTRI-.CHT, Netherlands 

 a Regulation of the cell cycle and its significance for development and differentiation: the role of 



changes in membrane properties and structure, ion- and cyclic nucleotide metabolism. Physarum 



polycephalum (Eumycetozoina), Xenopus laevis (Anura), neuroblastoma cells, Mus musculus 



(Rodentia) (with J. G. BLUEMINK, S. W. de LAAT, Th. F. J. de GREEFF (Univ. of Nijmetien), 



and B. A. M. van der ZEIJST (State Univ. of Utrecht)) 

 b Ivlectrical membrane properties, membrane structure, ion- and cyclic nucleotide metabolism 



during fertilization. Xenopus laevis (Anura) (with J. G. BLUI-MINK and S. W. de LAAT) 

 c Biosynthesis of soluble proteins in early development (isoelectric focusing, autoradiography). 



(Amphibia) (with S. K. BRAHMA, State Univ. of Utrcciit) 

 SABBADIN, A.; Dr., Prof. - 1st. di Biol. Anim., Univ. di Padova, Via Lorcdan 10, 35100 PADOVA, 



Italy 



88 



