TURPAEV T M.; Dr.biol., Prof. - Inst, of Devi. Biol., USSR Acad, of Sci., Vavilov St. 26, MOSCOW 



117334, ij.S.S.R. , , „ 



a Pharmacology of the role of biogenic monoamines in early embryos. Arbacia lixula, Paracentrotus 



Uvidus (Echinoidea) (with G. A. BUZNIKOV) 

 TVOROGOVA Ms A. G. - Dept. of Anim. Embryol., Inst, of Zool., Acad, of Sci. of the Georgian 



SSR, 31 Chavchavadze Ave., TBILISI 380030, U.S.S.R. 

 a Comparative study of adenohypophysis development in the embryo. Various spp. (Passeres, Aves) 

 TYSZKIEWICZ, Ms. K.; D.Sc. - Zool. Dept., Jagellonian Univ., ul.Karasia 6, 30-060 KRAKOW, 



Poland 

 a Embryogenesis of nervous system. Tetrodontophora bielanensis (CoUembola) 

 UBBELS, Ms. G. A.; Ph.D. - Hubrecht Lab. (Intern. Embryol. Inst.), Uppsalalaan 8, 3584 CT 



UTRECHT, Netherlands 

 a Cytochemistry, electron microscopy (with J. G. BLUEMINK), and cinematography (with 



K. HARA) of the origin of dorso-ventral polarity of the egg: 1. role of cytoskeleton in directive 



transport of cytoplasm, including pigment, and in establishment of dorso-ventrality (with 



K. RZEHAK and J. KLAG, Krakow); 2. other factors involved in cytoplasmic segregation. 



Xenopus laevis, Discoglossus pictus (Anura) 

 ULLMANN,Ms. S. L.;Ph.D. - Dept. of Zool., Univ. of Glasgow, GLASGOW Gl 2 8QC, Scotland, U.K. 

 a Polyovular follicles. Mus musculus (Rodentia) 

 b Light and electron microscopy of oogenesis. Isoodon macrourus (Peramelidae), Trichosurus 



vulpecula (Phalangeridae), Sarcophilus harissii (Dasyuridae, Marsupialia) 

 c Origin of primordial germ cells and gonadogenesis (light microscopy). Isoodon marcrourus, 



I. obesulus, Perameles nasuta (Marsupialia) 

 UNGER-ULLMANN, Ms. C; Dr.phil. - Inst. fiJr Molek.-biol., Osterreich. Akad. der Wissenschaften, 



Billrothstr. 1 1, 5020 SALZBURG, Austria 

 a Characterization of histones in differentiating lens cells. Gallus gallus (Aves) (with S. P. MODAK, 



Lausanne) 

 URBANI, E.; Prof. - I.Chair of Histol. and Embryol., Fac. of Sci., Univ. of Roma. Citta Universitaria, 



00185 ROMA, Italy ,,„.^., ^ • , ^ 



URSPRUNG,H.;Ph.D.,Prof. - Swiss Fed. Inst, of Technol., 8092 ZURICH Switzerland 

 UYLINGS, H. B. M.; Dr. - Netherl. Inst, for Brain Res., IJdijk 28, 1095 KJ AMSTERDAM, 



Netherlands , . , i j i * 



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



Rattus norvegicus (Rodentia) . . ,, . »„ . . nonnoDAUA t 



VACEK, Z.; MUDr., D.Sc, Prof. - Inst, of Embryol., Charles Univ., Albertov 4, 128 00 PRAHA 2, 



Czechoslovakia . ^. , . 



a Electron microscopy and histochemistry of the placenta (comparative studies on submicroscopic 



structure, enzyme histochemistry and transport mechanism). Homo sapiens (Primates), (Rodentia; 



Carnivora;Insectivora;Chiroptera) . , , ^ , , ■ • j 



b Role of primitive streak and tail region in early differentiation of the body (submicroscopic and 



cytochemical studies in normal and experimental conditions). Rana esculenta (Anura), Gallus 



domesticus (Aves), Rattus spec. (Rodentia) ^ , t, .. • j t • nnm 



VACELET, J. - Stat. Marine d'Endoume, Univ. d'Aix-Marseille, Rue de la Batterie des Lions, 1300/ 



MARSEILLE, France _ , . ^ xt ,• 



a Descriptive gametogenesis and embryonic development (light and electron microscopy). Neocoelia 



crypta (Sphinctozoa, Porifera) ^ . .^ , d •*• ^ 



b Description of the development (electron microscopy). Grantia compressa (Calcarea, Pontera) 



(withM.F.GALLISSIAN) ^ ,. „.,„^or^r,TTr^TA i. . 



VAGNETTI Ms.D.;Dr. - Ist.di Anat.Comp.,Univ. di Perugia, Via A. Pascoh, 06100 PERUGIA, Italy 

 a Action of antiandrogens on the ultrastructure of male genital organs. Cavia porcellus (Rodentia) 

 b Scanning electron microscopy of the cocoon shell. Dugesia lugubris (TurbeUaria) ^^^nn 



VAHERI, A. - Lab. of Exp. Embryol., Dept. of Pathol., Univ. of Helsinki, Haartmanmkatu 3, 00290 



HELSINKI 29, Finland . ,.^. x, . . x, i. t^ /^ ^ 



VAHS W ; Dr.phU., Prof. - Zool. Inst, der Univ., Weyertal 119, 5000 KOLN 41, B.R.D. (Germany) 

 a Ultrastructure of embryonic cells undergoing induction and differentiation. Triturus vulgaris 



(Urodela) ^ nr ,. v. * \ 



b Amitosis in liver and other organs (polyploidization in embryos and larvae). (Vertebrata) 

 c Polyploidization and cell cycle. (Ciliata) ^ ^ , , 



VAKAET L C A.; M.D., Prof. - Lab. of Anat. and Embryol., State Univ. Ctr., Groenenborgerlaan 



171, 2020 ANTWERPEN, Belgium . ^ „ ^ .. n . ■ 



a Early development (scanning and transmission electron microscopy). GaUus domesticus, Lotumix 



c.japonica (Aves) , . . . ■ ^ u • * 



b In vitro culture of blastoderms, normal and after experimental mterventions; histochemistry: 



enzymes and mucopolysaccharides. Same species as a .^^o^r^i, i ic^-7o 



VAKHRUSHEVA,Ms.M.P.;Dr. - Inst, of Med. Genet., Kashirskoye Chaussee 6a, MOSCOW 11547b, 



USSR 

 a Geneticregulationof development ofbrain, eye, and limbs. Mus musculus (Rodentia) 



VALEMBOIS, P.; D.Sc. - Lab. de Zool. A, Inst.de Biol. Anim., Univ.de Bordeaux I, Av. des Facultes, 

 33405 TALENCE, France . , , 



a Genetics of histocompatibUity : in vivo and in vitro incompatibihty reactions, ontogeny, molecular 

 basis genetic determinations and relations. Eisenia foetida (Oligochaeta), (Sipuncula) 



VALKEMA-PORRENGA, Ms. F. C; Drs. - Lab. for CeU Biol, and Histol., State Univ.. Rijnsburgerweg 

 10,2333 AA LEIDEN, Netherlands , ^, ^ 



a Development of bone and onset of mineraUzation in radu of 14-day embryos (electron micros- 

 copy). Mus musculus (Rodentia) 



113 



