A-1090WIEN, Austria 

 a Enzyme induction in embryonic and adult liver cells in vitro by steroid hormones. Rattus 



norvegicus (Rodentia) 

 VIJVERBERG, A. J. Drs. - Zool. Lab., Unit of Cell Biol, and Morphogen., Univ. of Leiden, 



Kaiserstr. 63, LEIDEN, Netherlands 

 a Proliferation (mitoses) and DNA synthesis in imaginal discs (autoradiography). Calliphora 



erythrocephala. (Diptera) 

 b Influence of X-irradiation, ecdysterone and juvenile hormone on morphogenesis of imaginal discs. 



Calliphora erythrocephala (Diptera) 

 VILANOVA TRIAS, J. - Dept. of Anat., Univ. of Barcelona, C/.Casanova 143, BARCELONA 11, 



Spain 

 a Effect of testosterone on development of genital system. Mus musculus (Rodentia) 

 VILLA, Miss L. Dr.Sci. - Zool. Inst., Univ. of Palermo, Via Archirafi 18, 90123 PALERMO, Italy 

 a Ultrastructure of spermatozoa and fertilization. Ascidia malaca (Ascidiacea) 

 b Ultrastructure of oocyte and egg development. Chaetopterus spec, Sternaspis spec. (Polychaeta) 

 VINCE, Miss M. A. B.A. - Psychol. Lab., Univ. of Cambridge, Downing St., CAMBRIDGE CB2 3EB, 



England 

 a Effect of external stimuli on acceleration and retardation of development and hatching. Coturnix 



c. japonica, Colinus virginiana, Gallus gallus (Aves) 

 b Relation between activity and physiology in the onset of foetal lung ventilation. Same species as a 



VISCUSO, Miss R. Dr. - 1st. di Zool., Univ. di Catania, Via Androne 81, 95124 CATANIA, Italy 

 VITTORELLI, Miss M. L. Dr.Biol. - 1st. di Anat. Comp., Univ. di Palermo, Via Archirafi 20, 90123 



PALERMO, Italy 

 a Fusion of blastomeres. Paracentrotus lividus (Echinoidea) 

 b DNA synthesis in dissociated embryonic cells and their capability to react with concanavalin A. 



Same species as a 

 c Isolation of plasma membranes from blastula cells and detection of enzymatic activities. Same 



species as a 

 VIZA, D. M.D. - Lab. dTmmunobiol., Pathol. Gen. et Exper., Fac. de Med. Pitie-Saipetriere, 105 



Bd.de l'Hopital, 75634 PARIS Cedex 13, France 

 a Cytostatic effects of antibodies against embryonic and tumour-specific cell-surface antigens on 



cells cultured in vitro. Mus musculus (Rodentia), Homo sapiens (Primates) 

 b Control of cell growth in vitro by solubilized cell-surface material obtained from homologous 



embryonic and tumour cells and from heterologous cells. Same species as a 

 VOLLMAR, H. Dr.rer.nat. - Biol. Inst. I (Zool.) der Univ., Katherinenstr. 20, 78 FREIBURG, B.R.D. 



(Germany) 

 a Embryonic determination. Acheta domestica (Orthoptera) 

 b Morphogenetic movements during early embryogenesis. Same species as a 

 VOLLRATH, L. Priv.Doz., Dr.med. - Dept. of Anat., King's College, Univ. of London, Strand, 



LONDON WC2R 2LS, England 

 VREEZEN, Miss W. J. Drs. - Dept. of Genet., Univ. of Leiden, Kaiserstr. 63, LEIDEN, Netherlands 

 a Selection on asymmetrical development of bristle patterns. Drosophila melanogaster (Diptera) 

 VRIES, O. M. H. de Drs. - Lab. of Bot., State Univ., Kerklaan 30, P.O.Box 14, HAREN (Gr.), 



Netherlands 

 a Biochemistry of wall formation, using extracts and protoplasts. Schizophyllum commune 



(Basidiomycetes, Fungi) 

 VUJANOVIC, N. L. M.D. - Immunol. Res. Center, Univ. of Belgrade, Vojvode Stepe458, P.O.Box 



979, 11000 BEOGRAD, Yugoslavia 

 a Lymphoid tissue development. Gallus domesticus (Aves) 

 VYAZOV, O. E. Dr.med.sci., Prof. - Lab. of Embryol., Inst, of Human Morphol., Acad, of Med. Sci. 



of the USSR, Shchepkin St. 61/2, MOSCOW 1251 10, U.S.S.R. ISDB 



a Development of tissue antigens during eye lens, retina, and kidney development. Gallus domesti- 

 cus (Aves), Mus musculus (Rodentia) 

 b Humoral interconnections between analogous organs (brain, lung, reticulo-endothelial and leuco- 



poietic system) of mother & foetus. Rattus norvegicus (Rodentia) 

 WADA, S. Dr.rer.nat. - Zool. Inst., Univ. Dusseldorf, Mettmanner Str. 16-18, 4 DUSSELDORF, 



B.R.D. (Germany) 

 a Morphogenesis of the compound eyes. (Arthropoda) 

 WADDINGTON, C. H. D.Sc, Prof. - Inst, of Anim. Genet., Univ. of Edinburgh, West Mains Rd., 



EDINBURGH EH9 3JN, Scotland, U.K. ISDB 



a Development of imaginal buds. Drosophila spec. (Diptera) (with E. M. ROBERTSON) 

 b Computer simulation of biological patterns (with R. COWE) 

 WAHLI, W. cand.phil. - Div. of Cell and Developm. Biol., Zool. Inst., Univ. of Bern, Sahlist.8, 3012 



BERN, Switzerland 

 a Larval cell cultures. Xenopus laevis (Anura) (with R. WEBER) 

 WAKELY (DENT), Mrs. J. Ph.D. - Dept. of Visual Sci., Inst, of Ophthalmol., Judd St., LONDON 



WC1H 9QS, England 

 a Influence of light on postnatal development of retina (electron microscopy). Rattus norvegicus 



(Rodentia) 

 b Normal development and congenital defects in the lens. Gallus domesticus (Aves), Rattus 



norvegicus (Rodentia) 

 WAL, U. P. v.d. M.Sc. - Zool. Lab., State Univ. of Utrecht, Transitorium III, Univ.centrum 'De 



Uithof, UTRECHT, Netherlands 



101 



