a Mechanism of kidney tubulogenesis. Mus musculus (Rodentia) (with J.J. WARTIOVAARA, 



L. O. SAXfiN, E. LEHTONEN, P. EKBLOM and J. SALONEN) 

 NORRGREN, G.; FU.kand. - Inst, of Zool., Uppsala Univ., Box 561, 751 22 UPPSALA, Sweden 

 a Factors stimulating axon outgrowth in vitro 

 NOTHIGER, R.; Dr.phil., Prof. - Zool.-vergl. Anat. Inst., Univ. Ziirich, 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. Same species as a 

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



86022 POITIERS Cedex, 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) 

 N0WAK6wNA-SEMBRAT, Ms. J.; Ph.D. - Inst, of Zool., Univ. of Wroclaw, uLSienkiewicza 21, 



50-335 WROGCAW, Poland 

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

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

 poda) 

 NUBLER-JUNG, Ms. K.; Dr.rer.nat. - BioL Inst. I (Zool.) der Univ., Katharinenstr. 20, 78 



FREIBURG, B.R.D. (Germany) 

 a Function of the intersegmental region in pattern reconstitution (transplantation). Dysdercus 



intermedins (Heteroptera) 

 b Pattern formation in imaginal discs (combination experiments). Drosophila hydei (Diptera) 

 NUSS, Ms. E.; Dr.rer.nat. - Zool. Inst. (I) der Univ., Rontgenring 10, 87WURZBURG, B.R.D. 



(Germany) 

 NUSSLEIN-VOLHARD, Ms. C; Dr.rer.nat. - Biol. Inst. I. (ZooL) der Univ., Albertstr. 21a, 



78 FREIBURG, B.R.D. (Germany) 

 a Pattern formation in early embryogenesis: maternal effect mutants (bicaudal etc.). Drosophila 



melanogaster (Diptera) 

 NYIRI, S.; M.D. - Dept. of OphthalmoL, Univ. Med. Sch., Koranyi S.16, SZEGED, Hungary 

 a Developmental histochemistry and electron microscopy of the autonomic ground plexus. Rattus 



rattus (Rodentia) (with B. CSILLIK, E. KNYIHAR, M. GAJ6 and G. KALMAN, Dept. of Anat.) 

 NYITRAY, Ms. M. - Res. Inst, for Pharm. Chem., P.O.Box 82, 1325 BUDAPEST, Hungary 

 a Effect of clofibrate and phenobarbital Na administered to pregnant and lactating mothers on 



offspring: mortality, hepatomegaly; study of critical time and liver histology. Rattus norvegicus 



(Rodentia) 

 ODEIGAH, P. C. G. - Inst, of Anim. Genet., Univ. of Edinburgh, West Mains Rd., EDINBURGH EH9 



3JN, Scotland, U.K. 

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



WC1E6BT, England 

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



(Rhizopoda) 

 b Cell surface membranes: changes after fertilization and during early development. Paracentrotus 



lividus (Echinoidea); various spp. (Ascidiacea) 

 c Developmental biology. Various spp. (Mesozoa) 

 OGORZALEK, A.; Ph.D. - Inst, of ZooL, Univ. of Wroclaw, uLSienkiewicza 21, 50-335 WROCtAW, 



Poland 

 a Oogenesis (autoradiography). Drosophila melanogaster (Diptera) 



b Cytochemistry of oogenesis. Nepa cinerea, Ranatra linearis, Naucoris cimicoides (Heteroptera) 

 OJEDA SAHAGUN, J. L.; Dr. 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 (stage 7-20 H.H.; electron and optic 



microscopy). Same species as a 

 OKKER-REITSMA, Ms. G. H.; Ph.D. - Lab. for CeU Biol, and HistoL, State Univ., Rijnsburgerweg 10, 



LEIDEN, Netherlands 

 a Steroid production of placenta and embryo of different ages. Mus musculus, Cavia porcellus 



(Rodentia) 

 OKSCHE, A.; Dr.med., Prof. - Zentrum fiir Anat. und CytobioL, Justus Liebig Univ., Aulweg 123, 



6300 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 



hypothalamic photoreceptor; pineal photoreceptor organs. (Vertebrata) 

 OLIVEREAU, Ms. M. M. A.; D.Sc. - 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. (Sabnonidae, Teleostei) 

 b Histophysiology of endocrine glands. ( Anguillidae) 



c Effects of salinity on larvae; histophysiology of endocrine glands. Pleurodeles waltl (Urodela) 

 OLIVO, O. M.; Prof. - 1st. di Anat. Umana Norm., Univ. di Bologna, Via Irnerio 48, BOLOGNA, Italy 

 OPAS, Ms. J.; M.Sc. - Dept. of Embryol., Zool. Inst., Univ. of Warsaw, Krak.Przedmies'cie 26/28, 



00-927 WARSZAWA, Poland 



78 



