PRAHA 2, Czechoslovakia , y. 



a Proteins and antigens in early development. (Amphibia) (with J. MACHA and J. PALECEK) 

 b Transplantation of nuclei in relation to the development of antigenic characteristics. (Amphibia) 



(with F. SLADECEK) 

 ROMBACH, J. Ir.(Agric) -■ Lab. of Plant Physiol. Res., Agric. Univ., Gen. Foulkesweg 72, 



WAGENINGEN, Netherlands 

 a Involvement of phytochrome and other photoreceptors in photomorphogenesis, studied in 



heterotrophic sterile culture of whole plants or parts of plants under different illumination. 



Lemna minor (Lemnaceae) 

 R0MERT, P. Prof. - Anat. Dept.C, Univ. of Copenhagen, 1 Universit.tsparken, 2100 COPEN- 

 HAGEN 0, Denmark 

 a Development of the ultimobranchial body. Mus musculus (Rodentia) 

 b Cell death during development. Mus musculus, Rattus spec. (Rodentia) 

 RONCALI, Miss L. M.D. - Inst, of Human Anat., Fac. of Med., Univ. of Bari, Policlinico, 70124 



BARI, Italy 

 a Modifications of vascular patterns during experimental twinning in the limb bud. Gallus 



domesticus (Aves) 

 b Experimental production of ectodermal thickenings in limb buds. Gallus domesticus (Aves) 

 c Modifications of vascular patterns following heterotopical grafts of limb bud apical ridge. Gallus 



domesticus (Aves) 

 ROOY, R. E. de Dr. - Lab. of Med. Chem., State Univ., Wassenaarseweg 62, LEIDEN, Netherlands 

 a Changes in amount and activity of the enzymes causing the synthesis and breakdown of brain 



lipids. Rattus spec. (Rodentia), Bos taurus (Artiodactyla), Homo sapiens (Primates) 

 ROSSI, A. Dr. - 1st. di Anat. Comp. 'Battista Grassi', Univ. di Roma, Via A.Borelli 50, 00161 



ROMA, Italy 

 a Development of the saccus vasculosus. Anguilla anguilla (Teleostei) 



ROSTAND, J. - 29 rue Pradier, 92 VILLE D'AVRAY, France ISDB 



a Parthenogenese et gynogenese; regulation chromosomique par le froid. (Amphibia) 

 b Mutations (polydactylie, ectrodactylie, etc.) et anomalies provoquees par le milieu exterieur 



(principalement 'Anomalie P'). Rana esculenta et autres spp. (Amphibia) 

 c Action protectrice de la glycerine a 1'egard de la congelation des cellules spermatiques. 



(Amphibia) 

 ROSTEDT, Miss I. B. Ph.D. - Centr. Publ. Health Lab., State Serum Inst., Mannerheimintie 166, 



00280 HELSINKI 28, Finland 

 a Heterogeneous inductors on embryonic ectoderm. Gallus domesticus (Aves) 

 b Early embryonic development including immunology. Same species as a 

 ROTT, Mrs. N. N. Cand.biol.sci. - Inst, of Developm. Biol., Acad, of Sci. of the USSR, Vavilov 



St. 26, MOSCOW 117334, U.S.S.R. 

 a Changes of mitotic cycle in early embryogenesis as related to morphogenetic nuclear function 



and synthesis of RNA. Misgurnus fossilis, Salmo gairdneri, Cyprinus carpio (Teleostei), 



Ambystoma mexicanum (Urodela) 

 ROUSSEL, C. Dr.en Med. - Lab. d'Histol.-Embryol.A, Fac. de Med., 45 rue des Sts.Peres, 75 PARIS 



Vie, France 

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

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

 a Ontogenines, new embryoactive substances. Triturus cristatus (Urodela) 

 ROUX, Ch. Dr.en Med., Prof. - Lab. d'Embryol., CHU Saint-Antoine, 27 rue Chaligny, 75 PARIS 



Xlle, France 

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



Mus musculus (Rodentia), Oryctolagus cuniculus (Lagomorpha) 

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



de Medecine, 34000 MONTPELLIER, France 

 a Multiple testis. Euproctus asper (Urodela) 



b Anomalies in spermatozoa (ultrastructure). Homo sapiens (Primates) 

 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 0JQ, England 

 a Ovum transplantation and artificial insemination. Oryctolagus cuniculus, (Lagomorpha), 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, Spam 

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

 RUCH, J. V. Dr.med., Dr.es Sci., Prof. - Inst. d'Embryol., Univ. de Strasbourg, 11 rue Humann, 



67085 STRASBOURG, France ISDB 



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



(Rodentia) 

 b Action of dexamethasone in vivo and in vitro. Oryctolagus cuniculus (Lagomorpha); Mus 



musculus (Rodentia) 

 RUDNEVA, Miss T. B. - Inst, of Developm. Biol., Acad, of Sci. of the U.S.S.R., Vavilov St. 26, 



MOSCOW 117334, U.S.S.R. 

 RUE, G. - Lab. de Biol. Cell., Fac. des Sci., B.P. 347, 51 REIMS, France 

 RUSSO-CAIA, S. Prof. - Inst, of Histol. and Embryol., Fac. of Sci., Univ. of Camerino, 62032 



CAMERINO, Italy 

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

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



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