a Meiosis and duration of meiotic phases. Mactra spec, Anodonta spec, LJnio spec. (Lamelli- 



branchia) 

 b History of meiosis research. (AnimaUa) 



VEDDER, F. D.; Dr.rer.nat. - Zool. Inst, der Univ., Weyertal 1 19, 5000 KOLN 41, B.R.D. (Germany) 

 a Protein metabolism during limb regeneration. Triturus vulgaris, T. alpestris (Urodela) 

 VEGT, G. B.; Drs. - Lab. for Cell Biol, and Histol., State Univ., Rijnsburgerweg 10, LEIDEN, 



Netherlands 

 a Cultivation of embryonic intestinal tissue. Rattus spec. (Rodentia) 

 VEINI (HARITOS), Ms. M.; M.Sc. - ZooL Lab., Univ. of Athens, Panepistimiopohs (Kouponia), 



ATHENS (621), Greece . • .o. 



VELA FERNANDEZ, J. A. - Dept. de Genet., Univ. de Barcelona, Av.Jose Antonio 585, 



BARCELONA-7, Spain 

 a Shell-gland induction (actinomycin-D treatment; electrofocussing of total protem). Physa acuta, 



Lymnaea auricularia (Gastropoda) 

 b Chorion-free embryo culture. Same species as a 



VELTMAN, W. A. M.; Drs. - Netherl. Inst, for Brain Res., IJdijk 28, AMSTERDAM, Netherlands 

 a Adaptability of the nervous system of adult organisms, compared with normal development. 



Rattus norvegicus (Rodentia), Homo sapiens (Primates) 

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



TsurupaSt. 3, MOSCOW 117469, U.S.S.R. , , , ., 



VERDIER G P J ;Dr.spec. -Dept. deBioL Gen. etAppl., Univ.de Lyon 1,43 Bd.du 11 Novembre 



191 8,' 69621 VILLEURB ANNE, France 

 a mRNA metabolism during development of chloroplast induced by ilium mation. Euglena gracilis 



(Euglenophyceae) t, j i o 



VERDONK, N. H.; Ph.D., Prof. - Zool. Lab., State Univ. of Utrecht, Transitorium III, Padualaan 8, 



UTRECHT, Netherlands 

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

 b Germinal localization in eggs. Various spp. (Mollusca) 

 c Cellular interactions in early development. Various spp. (Mollusca) 

 VERHOFSTAD, A. A. J.; Med. drs. - Dept. of Anat. and Embryol., Cathol. Univ., Geert Grooteplein 



N. 21, NIJMEGEN, Netherlands 

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



(histochemistry). Mus rattus (Rodentia) 

 VERNA, J. M.; M.Sc. - Lab. de Zool. et Biol. Anim., Univ. Sci. et Med. de Grenoble, B.P.53, Centre 



de Tri, 38041 GRENOBLE Cedex, France 

 a Morphological and experimental study of dermal mesenchyme innervation in the embryo from 5 



days of incubation. Gallus gallus (Aves) 

 b Long-term culture in vitro of associations of embryonic skin and spinal ganglia. Gallus gallus, 



Anas platyrhynchos (Aves) ^ , _,, 



VETTERLEIN, Ms. M.; M.B. - Inst, fiir Krebsforsch., Univ. Wien, Borschkegasse 8a, Postfach 72, 



A-1090WIEN, Austria 

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



norvegicus (Rodentia) 

 VIELL, B.; Dr.rer.nat. - Inst, fiir Entw.physiol., Univ. zu Koln, Gyrhofstr. 17, 5 KOLN 41, B.R.D. 



(Germany) 

 a Biochemical aspects of differentiation in the wing. Riella helicophylla (Hepaticae) 

 b Protein and amino acid metabolism during the first stages of regeneration. Same species as a 

 VIJVERBERG, A. J.; Dr. - Zool. Lab., Unit of Cell Biol, and Morphogen., State Univ., Kaiserstr. 63, 



LEIDEN, Netherlands 

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



erythrocephala (Diptera) 

 b Influence of ecdysterone and juvenile hormone on morphogenesis of imaginai discs. Same species 



as a 

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



Spain 

 a Biochemical changes in cerebrospinal fluid during embryonic development. Gallus domesticus 



(Aves) 

 b Effect of androgens and antiandrogens on sexual differentiation. Rattus spec. (Rodentia) 

 c Secretion of antimiillerian factor in developing gonad (organ culture). Same species as b 

 VILJANTO, J.; M.D. - Dept. of Forensic Med., Univ. of Turku, Kiinamyliynkatu 10, 20520 TURKU 



52, Finland 



also: Dept. of Pediat., Div. of Surg., Centr. Hosp., Kiinamyliynkatu 4-8, 20520 TURKU 52, 



Finland 

 a Biological sequences in regeneration of subcutaneous connective tissue, using "Cellstic method: 



cells in the exudate are harvested in cellulose sponge, inserted in silastic tubing (histology, 



histochemistry, biochemistry, immunofluorescence). Homo sapiens (Primates) 

 VILLA, Ms. L. ; Dr.Sci. - Zool. Inst., Univ. of Palermo, Via Archirafi 1 8, 90 1 23 PALERMO, Italy 

 a Ultrastructure of spermatogenesis, spermatozoa, and fertilization. Phallusia spec, Molgula 



impura, Ciona intestinalis (Ascidiacea) 

 VINCE, Ms. M. A.; B.A. - PsychoL Lab., Univ. of Cambridge, Downing St., CAMBRIDGE CB2 3EB, 



England 

 a Responsiveness in the embryo. (Aves) 

 b Responsiveness in the foetus. Cavia porcellus (Rodentia) 



106 



