a Electrophysiology of the embryonic heart. Rattus norvegicus, Cavia porcellus (Rodentia) 

 BERNARD, F. Lic.es Sci. - Lab. de Zool., Dept. de Biol., Univ. Sci. et Med. de Grenoble, B.P.53, 



38041 GRLNOBLE, France 

 a Histogenesis and morphogenesis of the digestive tract. (Teleostei) 



BERNDORFLR, A. Dr.med.habil. - Childrens Hosp. 'Paul Heim', Dept. for Congenital Malforma- 

 tions, Ulloi ut 86, BUDAPEST VIII, Hungary - Private adress: Benczur utca 39/a, BUDAPEST 



VI, Hungary 

 a Clinical embryopathology. 



b Intrauterine regeneration of congenital malformations, 

 c Biological study of malformations, 

 d Etiology of malformations from clinical viewpoints. 

 BERNOCCHI, Miss G. - Dept. of Histol. and Embryol., Univ. of Pavia, Piazza Botta 10, 27100 



PAVIA, Italy 

 a Histochemical analysis of catecholamines and 5-HT (5-hydroxytryptamine). (Mollusca) 

 b Histophotometric quantitative determination of nuclear DNA during the development of the 



central nervous system. Rattus norvegicus (Rodentia) 

 BERRY, M. Ph.D. - Dept. of Anat., Med. School, Univ. of Birmingham, Edgbaston, BIRMINGHAM 



B15 2TJ, England 

 a Effects of X-irradiation on central nervous development. Rattus spec. (Rodentia) 

 b Development of cerebral and cerebellar cortex. Rattus spec. (Rodentia) 

 c Regeneration in the central nervous system. Rattus spec. (Rodentia) 

 BERTINI, Miss M. M.D. - Cell and Molec. Biol. Lab., Dept. of Human Anat., Univ. of Torino, Corso 



M. d'Azeglio 52, 10126 TORINO, Italy 

 a Cell membrane differentiation; immunochemistry of surface macromolecules. Mus musculus 



(Rodentia) 

 BERTMAR.G. Ph.D. - Sect, of Ecol. Zool., Dept. of Biol., Univ. of Umea, 90187 UMEA, Sweden 

 a Experimental developmental morphology of the olfactory organ. Salmo spec. (Teleostei) 

 BERTOLANI, R. Dr.Biol.Sci. - 1st. di Anat. Comp., Univ. di Modena, Via Berengario 14, 41100 



MODENA, Italy 

 a Sex ratio and karyology in parthenogenetic and amphigonic species. Macrobi^tus richtersi, M. 



hufelandi, M. aureolatus (Tardigrada) 

 b Morphology of neotenic and metamorphosed animals. Triturus alpestris (Urodela) 

 BERTOLINI, B. Dr.Biol.Sci. - 1st. di Anat. Comp. 'Battista Grassi', Univ. di Roma, Via A. Borelli 



50,00161 ROMA, Italy 

 a Fibrous protein structures in developing nerve fibres. Lampetra spec. (Cyclostomata), Gallus 



domesticus (Aves) 

 BERTON (PECHEUX), Mrs. F. Doct. 3eme cycle - Centre de Biol., Fond. Hersent-Luzarche, Univ. 



de Tours, 36 AZAY-LE-FERRON, France 

 BERTON, J. P. Dr. - Lab. de Biol, de la Reprod., Univ. de Paris VI, B.P.261, 75827 PARIS-Cedex 



17, France 

 BESSE, G. - Lab. de Physiol, et Genet, des Crustaces, Univ. de Poitiers, 40 av. du Recteur Pineau, 



86022 POITIERS, France 

 a Influence des facteurs externes et internes sur les cycles sexuels des femelles. Ligia oceanica, 



Porcellio dilatatus (Isopoda, Crustacea). 

 BETTANIN (BELGRANO), Mrs. S. Dr.Nat.Sci. - 1st. di Zool., Univ. di Genova, Via Balbi 5, 16126 



GENOVA, Italy 

 a Embryonic development of a parthenogenetic marine form. Penilia avirostris (Cladocera, Crusta- 

 cea) (with N. DELLA CROCE) 

 b Growth of the embryo. Penilia avirostris (Cladocera, Crustacea) (with N. DELLA CROCE) 

 c Formation of resting eggs. Penilia avirostris (Cladocera, Crustacea) (with N. DELLA CROCE) 

 BEUG, H. Ph.D. - Friedrich-Miescher Lab. der Max-Planck Gesellschaft, Spemannst. 37-39, Post- 



fach 2109, 74 TUBINGEN, B.R.D. (Germany) 

 a Isolation and characterization of cell membrane components responsible for species-specific cell 



contact formation. Dictyostelium discoideum (Acrasiales) 

 BEYNON, A. D. G. B.D.S. - Dept. of Oral Anat., Dental School, Northumberland Rd., NEW- 

 CASTLE upon Tyne NE1 8TA, England 

 a Development of the root and periodontal ligament of the molar teeth. Mus musculus (Rodentia) 

 b Histochemistry of enamel maturation. Rattus norvegicus (Rodentia) 

 BEYSE, J. Dr.rer.nat., Dipl.Biol. - Inst, fur Genet., Univ. des Saarlandes, 66 SAARBRUCKEN 11, 



B.R.D. (Germany) 

 a Relations between electrolyte milieu and gene activities in giant chromosomes; direct measure- 

 ments of ion contents in nuclei and cytoplasm. Chironomus thummi (Diptera) 

 BEZEM, J. J. Ir. - Zool. Lab., State Univ. of Utrecht, Transitorium III, Univ.centrum 'De Uithof, 



UTRECHT, Netherlands 

 a Computer simulation of embryonic development, (with Chr. P. RAVEN) 

 BIAGIONI, Mrs. M. Dott.Sci.Nat. - 1st. di. Biol. Gener., Univ. di Perugia, Via del Giochetto, 06100 



PERUGIA, Italy 

 a Influenza dei sali di cobalto suU'eritropoiesi. Oryctolagus funiculus (Lagomorpha) 

 BIELANSKA (OSUCHOWSKA), Mrs. Z. Dr., Prof. - Dept. of Histol. and Embryol., Warsaw Agric. 



Univ., ul. Grochowska 272, WARSZAWA, Poland 

 BIERNE, J. Dr.es Sc. - Lab. de Biol. Cell., Univ. de Reims, B.P. 347, 51062 REIMS-Cedex, France 

 BIGGELAAR, J. A. M. v.d. Ph.D. - Zool. Lab., State Univ. of Utrecht, Transitorium III, Univ. 



centrum 'De Uithof, UTRECHT, Netherlands 

 a RNA synthesis in early stages. Lymnaea stagnalis (Gastropoda) 



14 



