NIKITIN, N. S. — Dcpt. of Embryo!., Leningrad Univ., Mendeleevsky St. 5, LENINGRAD 



B-164, U.S.S.R. 

 a Morphogenctic potentiality of somatic cells. Ephydatia iluviatilis (Porifeca) 

 NIKITINA. Mrs. L. A. — Inst, of Developm. Biol.. Acad, of Sci. of the U.S.S.R., Vavilov St. 



26. MOSCOW V-133, U.S.S.R. 

 a Transplantation of nuclei from the ectoderm and neural rudiments of developing embryos 



into enucleated eggs. Bufo viridis (Anura) 

 b Studies of potencies of the neural rudiments by means of explantation. Bufo viridis 



(Anura) 

 NIKOLSKAJA, Miss I. S. Cand.biol.sci. — Inst, of Developm. Biol., Acad, of Sci. of the 



U.S.S.R., Vavilov St. 26, MOSCOW V-133, U.S.S.R. 

 a Developmental biochemistry and physiology (respiration, blood pigments, action of 



respiratory inhibitors, contractile proteins). Strong ylocentrotus drobachiensis (Echinoidea), 



Misgurnus fossilis, Salmo salar (Telcostei), (Amphibia) 

 NILSSON, L. M.D. — Tornblad-Inst. for comp. Embryo!., Biskopsgatan 7, LUND, Sweden 

 a Brain differentiation studied with immunofluorescence. Mus musculus (Rodentia) 

 b Monamine development in the nervous system. Gallus domesticus (Aves) (in collab- 

 oration with L. HAKANSSON) 

 NILSSON. S. B. Phil.kand. — Dept. of Zoophysiol., Univ. of Umea, UMEA 6, Sweden 

 a Carbohydrate metabolism in very young embryos. Rana spp. (Anura), Gallus domesticus 



(Aves) (in collaboration with S. L0VTRUP) 

 NISHIMURA, H. M.D., Prof. — Dept. of Anat., Fac. of Med., Kyoto Univ., Konoe-cho, 



Yoshida, Sakyo-ku. KYOTO, Japan 

 a Modification of susceptibility to teratogenesis. Mus musculus (Rodentia) 

 h Evaluation of tests on drug teratogenicity safety. Mus musculus, jRattus norvegicus (Ro- 



dentia), Oryctolagus cuniculus (Lagomorpha) 

 c Anomalies in early embryos and maternal factors. Homo sapiens (Primates) 

 NISHIOKA, Miss M. D.Sc. — Zool. Lab., Fac. of Sci., Hiroshima Univ., Higashisenda-cho, 



HIROSHIMA, Japan 

 a Synthesis of amphidiploids. (Ranidae, Anura) 



b Synthesis of nucleo-cytoplasmic hybrids between different species. (Ranidae, Anura) 

 • NIU, M. C. Ph.D., Prof. — Dept. of Biol., Temple Univ., Broad and Berks St., PHILA- 

 DELPHIA, Pa. 19122, U.S.A. 

 NIWELWSKI, J. M. Ph.D. — Dept. of Biol, and Embryo!., Acad, of Med., ul. Kopernica 7, 



KRAKOW, Poland 

 NIXON, D. A. Ph.D. — Physiol. Dept., St. Mary's Hosp. Med. School, Paddington, LON- 

 DON W 2, England 

 a Perfusion of the isolated foetus. Ovis aries (Artiodactyla) 

 b Development of renal function. Ovis aries (Artiodactyla) 

 NOBILI, R. Dr.Biol.Sci. — 1st. di Zool. e Anat. comp. dell'Univ., Via A. Volta 4, PISA. 



Italia 

 a Reproduction and cytology. (Ciliata) 

 NOGAMI, H. M.D. — Dept. of Orthopaedic Surg., School of Med., Nagoya Univ., Tsuru- 



mai-cho, Showa-ku, NAGOYA, Japan 

 a Digital malformations in the fetus caused by X-irradiation. Mus musculus (Rodentia) 

 b Limb and digital malformations in the fetus caused by excessive vitamin A. Mus musculus 



(Rodentia) 

 c Pathogenesis of spinal malformations induced in the embryo. Mus musculus (Rodentia) 

 NOLL, F. Dr.med. — Inst. f. Zellphysio!., Deutsche Akad. der Wissensch. zu Berlin, Linden- 



berger Weg 70, 1 1 15-BERLIN-Buch, Deutsche Demokr. Republik 

 a Nucleic acid metabolism in early embryogenesis. Ascaris lumbricoides var. suis (Nema- 



toda) 

 NONAMI, Y. D.Agr.Chem., Prof. — Fac. of Agric, Univ. of Niigata, 106 Koganecho, 



NIIGATA, Japan 

 a Dialyzable oligosaccharides of yolk of the incubated egg (fate of sugars and glycoproteins 



during incubation of eggs). Gallus domesticus (Aves) 

 b Lysozyme of incubated egg white. Gallus domesticus (Aves) 

 NORMAN, C. Ph.D., Prof. — Dept. of Biol., West Virginia Univ., MORGANTOWN, 



W.Va., U.S.A. 

 a The intracellular distribution of sulfhydryl groups in embryonic, adult and tumorous 



tissues. Rana pipiens (Anura) 

 h Effects of pH on the metabolism and fertilizing capacity of spermatozoa cultured i n 



vitro. (Mammalia) 

 c Effects of light on spermatozoa. (Mammalia) 

 d Physiology and biochemistry of germ cells. (Mammalia) 

 e Physiological and biochemical basis of cell senescence, 

 f The effect of sterols on growth and development of sexuality. Phytophthora cactorum 



(Fungi) 

 N?)RREVANG, A. M.Sc. — Inst, of Comp. Anat.. Universitetsparken 15, COPENHAGEN 



0, Denmark 



til 



