a Mitochondrial biogenesis during early development. Paracentrotus lividus, Arbacia lixula (Echi- 



noidea) 

 b Cytochemistry and ultrastructure of spermiogenesis. Several spp. (Anostraca, Crustacea) 



NIE, C. J. van; D.V.M. - Lab. of Anat. and Embryol., Vrije Univ., v.d. Boechorststr. 7, 1081 BT 



AMSTERDAM, Netherlands 

 a Ontogenetic malformations of the heart. Sus scrofa. Bos taurus (Artiodactyla) 

 b Pathological development of heart and vessels. Same species as a 

 c Teratology. (Mammalia), Homo sapiens (Primates) 

 NIELSEN, CI.; Dr.phil. - Marine Biol. Lab., Univ. of Copenhagen, Strandpromenaden, 3000 



HELSING0R, Denmark 

 a Developmental biology. Crisia spec, Alcyonidium spec, Hippodiplosia spec, Bugula spec, Fejies- 



trulina spec. (Ectoprocta) 

 NIEMIERKO, Ms. A. - Lab. 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 musculus 



(Rodentia) 

 b Experimental induction of triploidy (in 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, 3584 CT 



UTRECHT, Netherlands 

 a Comparative study on the origin of primordial germ cells and mesoderm formation, and phylo- 



genetic implications, (lower Vertebrata incl. Reptilia) (with L. A. SUTASURYA and co-workers, 



Bandung, bidonesia) 

 b Analysis of dorso-ventral and cranio-caudal polarity in mesoderm induction. Bombina orientalis 



(Anura), Ambystoma mexicanum (Urodela) (with E. C BOTERENBROOD and K. HARA) 

 c Origin of dorso-ventral polarity of the egg. Discoglossus pictus, Xenopus laevis (Anura) (with 



K. HARA and G. A. UBBELS) 

 d Early development. Chelonia mydas (Chelonia) (with L. A. SUTASURYA) 

 NIGON, v.; D.Sc, Prof. - Dept. de Biol. Gen. et Appl., Univ. de Lyon I, 43 Bd. du 11 Novembre 



1918, 69621 VILLEURBANNE, France 

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

 b Erythrocyte differentiation. Gallus domesticus (Aves), Homo sapiens (Primates) 

 NIJWEIDE, P. J.; Dr. - Lab. for Cell Biol, and Histol., State Univ., c/o Acad. Hosp., Rijnsburgerweg 



10, 2333 AA LEIDEN, Netherlands 

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



Rattus spec. (Rodentia) 

 b Metabolism and hormonal sensitivity of cultured bone cells derived from embryonic calvaria. 



Gallus domesticus (Aves) 

 c Effects of gamma-irradiation on bone and cartilage. Mus musculus (Rodentia) 

 NIKITIN, N. S.; Cand.biol. - Vet. Inst., Moskowsky prospect 112, LENINGRAD, USSR 

 a Influence of UV-irradiation on development. Gallus domesticus (Aves) 

 NIKITINA, Ms. L. A.; Cand.biol.sci. - Inst, of Devi. Biol., Acad, of Sci. of the USSR, Vavilov St. 26, 



MOSCOW 117334, USSR 

 NIZEYIMANA-RUGINA, E.; Dr.med. - Lab. d'Anat. et d'Embryol. Hum., Univ. Libre de Bruxelles, 



97 Rue aux Laines, 1000 BRUXELLES, Belgium 

 a Cyto-enzymology of early development (5' nucleotidase). Mus musculus, Rattus norvegicus 



(Rodentia) 

 NORDLING, S.; M.D. - Lab. of Exp. Embryol., Dept. of Pathol., Univ. of Helsinki, Haartmaninkatu 



3, 00290 HELSINKI 29, Finland 



a Mechanism of kidney tubulogenesis. Mus musculus (Rodentia) (with L. O. SAXEN, E. LEHTONEN, 

 P. EKBLOM and J. SALONEN) 



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



a Factors stimulating axon outgrowth in vitro 



NORRIS,M. L.- A.R.C. Inst, of Anini. Physiol., Anim.Res. Station, 307 Huntingdon Rd., CAMBRIDGE 

 CB3 OJQ, England 



a Mechanisms involved in sperm transport through female genital tract; competitive fertilization 

 between and withm species; egg transport through the oviduct; fate of eggs following asynchro- 

 nous transfer; survival of in vitro cultured eggs; factors affecting survival of eggs during delayed 

 implantation; luteotrophic role of the early embryo. (Animalia) 



b Sexual behaviour, hormone levels and fertility. Oryctolagus cuniculus (Lagomorpha) 



c Control of implantation and delayed implantation. Meriones unguiculatus (Rodentia), Mustela 

 vison (Carnivora) 



NOTHIGER, R.; Dr.phil., Prof. - Zool. Inst, der Univ. Zurich, Winterthurerstr. 190, 8057 ZURICH, 

 Switzerland 



NOULIN, G. - Lab. de Biol. Anim. (Physiol, et Genet, des Crustaces), Univ. de Poitiers, 40 av. du 

 Recteur-Pineau, 86022 POITIERS Cedex, France 



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

 (Isopoda, Crustacea) 



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



NOWAKOWNA-SEMBRAT, Ms. J.; Ph.D. - Inst, of Zool., Univ. of Wrorfaw, ul.Sienkiewicza 21, 

 50-335 WROC-tAW, Poland 



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



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

 poda) 



84 



