d Autoradiography of oogenesis. Mus musculus (Rodentia) 



VALK, P. van der Drs. - Lab. of Bot., State Univ., Kerklaan 30, P.O.Box 14, HAREN (Gr.), 



Netherlands 

 a Ultrastructure and biochemistry of cell wall regeneration using protoplasts. Schizophyllum 



commune (Basidiomycetes, Fungi) 

 VAND1 BROIK, G. D.Sc, Prof. - Lab. d'Embryol., Inst, de Zool., Univ. de Louvain, 59 rue de 

 Namur, LOUVAIN, Belgium ISDB 



VAN DLUSEN, E. B. Ph.D. - Biozentrum der Univ. Basel, Abt. Zellbiol., Klingelbergst. 70, 4056 



BASEL, Switzerland 

 a Germ cell determination during early embryogenesis. Drosophila subobscura (Diptera) 

 VAN GANSEN (RASMONT), Mrs. P. Prof. - Dept. of Molec.Biol., Free Univ. of Brussels, 67 rue des 

 Chevaux, 1640 RHODK ST.GENESE, Belgium ISDB 



a Ultrastructure of young ovaries at metamorphosis. Xenopus laevis (Anura) 

 b RNA synthesis during oogenesis and maturation (electron microscopy, autoradiography). 



(Amphibia) 

 c Effect of rifamycin SV on rDNA synthesis and nucleolar structures in young oocytes (electron 



microscopy, autoradiography). Xenopus laevis (Anura) 

 d Biochemistry and ultrastructure of particulate glycogen purified from oocytes and embryos: 

 degrading effects of amylase and deproteinization with trichloracetic acid. Xenopus laevis 

 (Anura) 

 VANNINI, E. Dr., Prof. - Inst, of Zool., Fac. of Sci., Univ. of Bologna, Via S.Giacomo 9, 40126 



BOLOGNA, Italy 

 a Experimental analysis of the development of the gonad and Bidder's organ. Bufo spec. (Anura) 

 b Inhibition by antibiotics of testosterone-induced sex-reversal in tadpoles. Rana dalmatina (Anura) 

 c General study of the problem of the 'sex gradient' in various hermaphroditic animals. (Hydroi- 



dea: Tricladidea, Turbellaria; Serpulidae, Polychaeta) 

 VASSE, J. Lic.es Sci. - Serv. d'Embryol. Exper., Inst. Pasteur, 20 rue des Moulins, 951 10 SANNOIS, 



France 

 a Relationship between the somites and the primordia of the forelimbs. Testudo spec, Emys spec. 



(Chelonia), Lacerta spec. (Lacertilia) 

 b RNA, DNA, and protein synthesis of epidermal and mesodermal cells in the limb buds. 



(Chelonia), Anguis fragilis, Lacerta viridis (Lacertilia) (with A. RAYNAUD) 

 c Effects of x-rays on embryonic development. Lacerta viridis (Lacertilia) (with CI. PIEAU) 

 d Effects of metabolic inhibitors on embryonic development. (Reptilia) 

 VASSETZKY, S. G. Cand.biol.sci. - Inst, of Developm. Biol., Acad, of Sci. of the U.S.S.R., Vavilov 



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

 a Dynamics of meiosis and .mitosis in eggs. Strongylocentrotus drobachiensis, S. intermedius 



(Echinoidea) 

 b Production of diploid gynogenesis by means of heat treatment of oocytes at the first maturation 

 division and of chemical treatment (with nitrogen mustard) of sperm. Acipenser guldenstadti, A. 

 stellatus (Chondrostei) 

 VEINl, Miss M. M.Sc. - Zool. Lab., Univ. of Athens, Panepistimiopolis (Kouponia), ATHENS (621), 



Greece 

 a Differentiation tendencies of Hensen's node in primitive streak and head process stages examined 



by coelomic transplantation of the node. Gallus domesticus (Aves) 

 VERBICKY, M. Sh. Cand.med.sci. - Inst, of Human Morphol., Acad, of Med. Sci. of the USSR, 



ShchepkinSt. 61/2, MOSCOW 125110, U.S.S.R. 

 a Immunological relationships between mother and foetus. Rattus norvegicus (Rodentia), Papio 



hamadryas, Macaca mulatta, Homo sapiens (Primates) 

 b Humoral interactions between analogous organs (reticuloendothelial and leucopoietic system) of 



mother and foetus. Rattus norvegicus (Rodentia), Macaca mulatta (Primates) 

 VERDIER, G. P. J. Dr.spec. - Sect, de Biol. Gen. et Appl., Univ. de Lyon I, 43 Bd. du 1 1 Novembre 



1918, 69621 VILLEURBANNE, France 

 a Metabolisme du mRNA lors de l'induction de la formation du chloroplaste a la lumiere. Euglena 



gracilis (Euglenophyceae) 

 VERDONK, N. H. Ph.D. - Zool. Lab., State Univ. of Utrecht, Transitorium III, Univ.centrum 'De 



Uithof, UTRECHT, Netherlands 

 a Determination of bilateral symmetry in the head region. Lymnaea stagnalis (Gastropoda) 

 b Gene expression in early development. Lymnaea stagnalis (Gastropoda) 

 c Germinal localization in eggs. Dentalium spec. (Scaphopoda); Patella spec. (Gastropoda) 

 d Development of isolated blastomeres. Bithynia tentaculata (Gastropoda) 

 VEREISKAYA, Miss V. N. Cand.biol.sci. - Lab. of Developm. Cytogenet., Inst, of Developm. Biol., 



Acad, of Sci. of the U.S.S.R., Vavilov St. 26, MOSCOW 1 1 7334, U.S.S.R. 

 VERHOFSTAD, A. A. J. Med.drs. - Dept. of Anat. and Embryol., Univ. of Nijmegen, Geert 



Grooteplein N. 21, NIJMEGEN, Netherlands 

 a Differentiation of epinephrine- and nor-epinephrine-containing cells in the adrenal medulla, 



(histochemistry). Mus rattus (Rodentia) 

 VERNET, G. Dr.Biol. - Lab. de Biol. Cell., Univ. de Reims, B.P.347, 51062 REIMS Cedex, France 

 a Synthesis of porphyrins during development. Lineus viridis (Nemertea) 

 b The roles of pigments (melanin, porphyrin, hemoglobin, and others). (Lineidae, Nemertea) 

 c Porphyrin synthesis in erythroid cells. Rattus spec. (Rodentia), Homo sapiens (Primates) 

 VERNET (CORNUBERT), Mrs. G. M. Dr.es Sci., Prof. - Lab. de Physiol, des Invertebres, Univ. des 



Sci. et Techn. du Languedoc, 34 MONTPELLIER, France 

 VETTERLEIN, Miss M. M.B. - Inst, fur Krebsforsch., Univ. Wien, Borschkegasse 8a, Postfach 72, 



100 



