e Development of the subneural apparatus. Rattiis spec. (Rodentia), Oryctolagus cuniculus 



(Laaomorplia) 

 f Regeneration of terminal nerves and motor end plates. Same species as e 

 NIELSEN, C'l.; Dr.phil. - Marine Biol. Lab., Univ. of Copenhagen, Strandpromenaden, 3000 



HELSING0R, Denmark 

 a Ciliary mechanisms of adults and larvae. Loxosoma spec, Loxosomella spec, Pedicellina spec, 



Barentsia spec. (Endoprocta), Alcyonidium spec, Electra spec. (Ectoprocta) 

 NIEMIERKO, Mrs. A. - Dept. of Exper. Embryol., Inst, of Obstet. and Gynecol., Med. Acad., Karowa 



2, 00-315 WARSZAWA, Poland 

 a Early development of eggs; experimental induction of chromosomal aberrations. Mus nuisculus 



(Rodentia) 

 b Experimental induction of triploidy (ill vivo and in vitro) and postimplantation development of 



triploid embryos. Same species as a 

 NIEUWKOOP, P. D.; Phil.Dr., Prof. ~ Hubrecht Lab. (Intern. Embryol. Inst.), Uppsalalaan 8, "De 



Uithor\ UTRECHT, Netherlands 

 a The induction of the mesoderm and its cranio-caudal and dorso-ventral organization. Ambystoma 



mexicanum, Triturus alpestris (Urodela) (with E. C. BOTERENBROOD and K. HARA) 

 b The origin of the dorso-ventral polarity of the egg. Discoglossus pictus, Xenopus laevis (Anura) 



(with K. HARA and G. A. UBBELS) 

 c Comparative study on the origin of primordial germ cells and mesoderm formation, and 



phylogenetic implications, (lower Vertebrata incl. Reptilia) (with L. A. SUTASURJA and co- 

 workers, Bandung, Indonesia) 

 NIGON, v.; Dr.Sci., Prof. ~ Dept. de Biol. Gen. et Appl., Univ. de Lyon I, 43 Bd. du 11 Novcmbre 



1918, 69621 VILLEURBANNE, France 

 a Biochemistry and genetics of chloroplast differentiation. Euglena gracilis (Euglenophyceae) 

 b Erythrocyte differentiation. Gallus domesticus (Aves) 

 NIIKAWA, N.; M.D. - Lab. of Embryol. and Cytogenet., Univ. Clinic of Gynecol, and Obstet., Geneva 



Univ., 20 rue Alcide-Jentzer, 1211 GENEVE 4, Switzerland 

 a Oral contraceptives and chromosomal abnormalities in spontaneous abortions. Homo sapiens 



(Primates) 

 b Phenotype and unusual chromosome abnormalities in abortions. Homo sapiens (Primates) 

 c Determination of parental contribution of extra chromosomes. Homo sapiens (Primates) 

 NIJWEIDE, P. J.; Drs. - Lab. for Cell Biol, and Histol., State Univ., Rijnsburgerweg 10, LEIDEN, 



Netherlands 

 a Calcium and strontium metabolism of embryonic calvarium periost. Gallus domesticus (Aves), 



Rattus spec. (Rodentia) 

 NIKITIN, N. S.; Cand.biol. - Dept. of Embryol., Leningrad State Univ., Mendeleevsky St.5, 199164 



LENINGRAD, U.S. S.R. 

 a Morphogenetic potentiality of somatic cells. Ephydatia fluviatilis (Porifera) 

 b Development of culture media for dissociated cells. (Porifera) 

 NIKITINA, Mrs. L. A.; Cand.biol. sci. - Inst, of DevL BioL, Acad, of Sci. of the USSR, Vavilov St. 26, 



MOSCOW 117334, U.S.S.R. 

 a Analysis of developmental potencies of nuclei in sequential stages of oogenesis by means of their 



transplantation into enucleated oocytes and eggs. (Acipenseridae, Chondrostei; Amphibia) 

 NOACK, W.; Dr. - Anat. Inst, der Freien Univ. Berhn, Kon.-Luisc-Str. 15, 1 BERLIN 33, B.R.D. 



(Germany) , 



NOBILI, R.; Dr.ScBiol., Prof. ~ 1st. di ZooL e Anat. Comp. delEUniv., Via A.Volta 4, 56100 PISA, Italy 

 NORDLING, S.; M.D. ^ Lab. of Exp. Embryol., III. Dept. of PathoL, Univ. of Helsinki, Haart- 



maninkatu 3, 00290 HELSINKI 29, Finland 

 a Mechanism of kidney tubulogenesis. Mus musculus (Rodentia) (with J. .1. WARTIOVAARA, 



L. O. SAXf^:N, and E. LEHTONEN) 

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



COPENHAGEN 0. Denmark 

 NOTHIGER, R.; Dr.phil., Prof. - Zool.-vergl. Anat. Inst., Univ. Zurich, Kiinstlergassc 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 

 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. 

 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 l\tude experimcntale de la production d'appendices surnumcraires. (Isopoda, Crustacea) 

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



12000 PRAIIA 2, Czeclioslovakia 

 NOVEL, G.; Dr. spec Lab. de Zool. et Biol. Anim., Univ. Sci. et Med. de Grenoble, B.P.53, Centre 



de Tri, 38041 GRENOBLE, France 

 a Role of proliferation and cell migration in formation of feather primordia. Gallus gallus (Aves) 

 N0WAK6WNA, Miss J.; Ph.D. - Inst, of Zool., Univ. of Wroc-hiw, ul. Sienkiewicza 21, 50-335 



WROC-tAW, Poland 

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

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

 poda) 



76 



