b Development of nervous system. (Mammalia) 



NOBILI, R. Dr.Sc.Biol., Prof. - 1st. di Zool. e Anat. Comp. dell'Univ., Via A. Volta 4, 56100 PISA, 



Italy 

 a Cell differentiation in relation to sexual phenomena. Blepharisma spec. (Ciliata) 

 b Cytology of conjugation and life cycle. Blepharisma spec, Euplotes spec. (Ciliata) 

 NORD, L. M.D. - Tornblad-Inst. for Comp. Embryol., Biskopsgatan 7, 223 62 LUND, Sweden 

 a Primary induction and brain differentiation studied with immunofluorescence. Gallus domesticus 



(Aves) 

 N0RREVANG, A. D.Sc. - Inst, of Comp. Anat., Univ. of Copenhagen, Universitetsparken 15, 2100 



COPENHAGEN 0, Denmark 

 a Endocrine control of oocyte growth (electron microscopy). (Anura) 

 NGTHIGER, R. Dr.phil., Prof. - Zool.-vergl. Anat. Inst., Univ. Zurich, Kunstlergasse 16, 8006 



ZURICH, Switzerland 

 a Sex determining genes studied at the cellular level. Drosophila melanogaster (Diptera) 

 b Genetic analysis of determination by means of induced mitotic recombination. Drosophila 



melanogaster (Diptera) 

 NOTT, J. A. Ph.D. - N.E.R.C. Unit of Marine Invert. Biol., Marine Sci. Labs., Univ. Coll. of North 



Wales, MENAI BRIDGE, Anglesey LL59 5EY, Wales, U.K. 

 a Larval structure. (Cirripedia, Crustacea; Serpulidae, Polychaeta) 

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



86022 POITIERS, France 

 a Controles endocrines de la formation et de revolution des regenerats d'appendices locomoteurs. 



(Isopoda, Crustacea) 

 b Etude experimentale de la production d'appendices surnumeraires. (Isopoda, Crustacea) 

 NOVAK, V. J. A. D.Sc. - Dept. of Physiol., Inst, of Entomol., Czech. Acad, of Sci., Na Folimance 5, 



12000 PRAHA 2, Czechoslovakia 

 a Physiology, endocrinology, and embryology. Pyrrhocoris apterus (Hemiptera), Schistocerca 



gregaria (Orthoptera), Galleria mellonella (Lepidoptera), Drosophila melanogaster (Diptera) 

 NOVEL, G. Dr.spec. - Lab. de Zool., Dept. de Biol., Univ. Sci. et Med. de Grenoble, B.P.53, 38041 



GRENOBLE, France 

 a Role of epidermis and dermis in feather pattern formation. Gallus domesticus (Aves) 

 NOWAKOWNA, Miss J. Ph.D. - Inst, of Zool., Univ. of Wroclaw, ul. Sienkiewicza 21, 50-335 



WROCLAW, Poland 

 a Cytology and cytochemistry of partial metamorphosis. Triturus spec. (Urodela) 

 b Cytology and cytochemistry of gametogenesis. Embletonia pallida (Opisthobranchia, Gastro- 

 poda) 

 NUESCH, H. Dr.sci.nat., Prof. - Zool. Anstalt der Univ., Rheinsprung 9, 4051 BASEL, Switzerland 

 NUGEYRE, P. - Lab. d'Histol.-Embryol., Fac. de Med., Bd. Winston Churchill, B.P. 38, 63 



CLERMONT-FERRAND, France 

 OAKESHOTT, S. M.A., M.B. - Dept. of Anat., Univ. of Cambridge, Downing St., CAMBRIDGE CB2 



3DY, England 

 a Topographical anatomy of thoracopagi. Homo sapiens (Primates) 

 O'DELL, D. S. Ph.D. - Dept. of Zool. and Comp. Anat., Univ. Coll. London, Gower St., LONDON 



WC1E6BT, England 

 a First formation of antigens coded for by the paternal pronucleus in merogones and interspecific 



hybrids (immunofluorescence and other methods). Paracentrotus lividus, Arbacia lixula 



(Echinoidea) 

 b Biochemistry of the transitions between the amoeboid and the flagellate stages. Naegleria gruberi 



(Rhizopoda) 

 c Cell surface membranes; changes after fertilization and during early development. Paracentrotus 



lividus (Echinoidea); various spp. (Ascidiacea) 

 OGORZAtEK, A. Ph.D. Inst, of Zool., Univ. of Wroc/aw, ul.Sienkiewicza 21, 50-335 



WROCLAW, Poland 

 a Oogenesis. (Diptera. Hemiptera) 

 OJEDA SAHAGUN, J. L. Dr.en Med., Prof. - Serv. de Embriol. Exper., Dept. de Anat., Fac. de 



Med., SANTANDER, Spain 

 a Biochemical and ultrastructural effects of barbituric compounds on the embryo. Gallus 



domesticus (Aves) 

 b Cell death in the developing central nervous system (stages 7-20 H.H.; electron and optic 



microscopy). Gallus domesticus (Aves) 

 OKKER-REITSMA, Mrs. G. H. Drs. - Lab. for Cell Biol, and Histol., State Univ., Rijnsburgerweg 10, 



LEIDEN, Netherlands 

 a Androgen production of placentae of different ages (bioindicator test, histochemistry, chroma- 

 tography). Cavia porcellus, Mus musculus (Rodentia) 

 OKSCHE, A. Dr.med., Prof. - Anat. Inst, der Univ., Friedrichst. 24, 63 GIESSEN, B.R.D. 



(Germany) 

 a Development of neuroendocrine cell complexes (units) in the hypothalamus (neurohistology, 



electron microscopy, cytometry). (Aves, Mammalia) 

 b Development of photo-neuro-endocrine systems: retino-hypothalamic connections; deep hypo- 

 thalamic photoreceptor; pineal photoreceptor organs. (Vertebrata) 

 OLIVEREAU, Miss M. M. A. Dr.es Sci. - Lab. de Physiol., Inst. Oceanographique, 195 rue Saint- 

 Jacques, 75005 PARIS, France 

 a Cytology and histochemistry of endocrine glands in relation with development, and after various 



experimental procedures. (Salmonidae, Teleostei) 



74 



