Nieuwkoop -Oka 



a. Quantitative analysis of the competence of ectoderm during normal 

 development with fold implantation technique. Ambystoma mexicanum 



(Ihodcla) . u u 



b. Quantitative analysis of propagation of inductive action through com- 

 petent ectoderm. Ambystoma mexicanum (Urodela) 



c. Analysis of neural induction under normal and experimental conditions 

 with time lapse photography. (Amphibia) 



NIIZIMA, M. M.D.. Ph.D. — Dept of Anat., Tokyo Med. and Dent. 

 Univ.. Yushima 3. Bunkyo-ku, TOKYO. Japan 

 a. Tissue culture studies on the development of dental tissues. Homo 



sapiens, Felis domestica (Mammalia) 

 h. Tissue culture studies on metamorphosis. (Amphibia) 

 NIJENf-IUIS, E. D. M.Sc. — Zool. Lab. der Rijks Univ., Janskerkhof 3. 

 UTRECHT. Holland 



a. Analysis of the phase specificity in the sensitivity of the egg to Li-ions. 

 Limnaea stagnalis (Gastropoda) 



b. Autoradiographic localization of kations in eggs. Limnaea stagnalis 

 (Gastropoda) 



c. Time course of mitotic processes during early cleavage stages. Limnaea 

 stagnalis (Gastropoda) 



NISHIltsUTSUJI— UWO. Mrs J. — Lab. of Embryol. and Exper. Mor- 



phol., Zool. Inst., Dept of Sci., Kyoto Univ.. KYOTO. Japan 



a. Hormonal mechanism of metamorphosis. Bombyx mod. Luehdorfia japo- 



nica. Philosamia cynthia ricini (Lepidoptera) (in collaboration with M. 



ICHIKAWA) 



NIU M. C. Dr, M.LLE. — Rockefeller Inst, for Med. Research, 66th St 



and York Ave. NEW YORK 21, N.Y., U.S.A. 

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

 Italia 

 a. Reproduction. (Tridadidea, Turbellaria) 

 NORBERG, O. V. O.Dr. Prof. — Dept of Histol.. Karolinska Inst., Sol- 

 navagen 1, STOCKHOLM 60, Sweden 

 a. The postnatal evolution of the lower jaw. Homo sapiens (Primates) 

 NORMAN, C. Ph.D. — Dept of Anat., School of Med.. Univ. of West 

 Virginia, MORGANTOWN, W.Va, U.S.A. 

 a. The intracellular distribution of sulfhydryl groups in embryonic, adult 

 and tumorous tissues. Rana pipiens (Anura) 

 NOWAKOWNA. Miss J. M.Ph. — Zakiad Zool. Ogolnej. Inst. Zool.. 

 Uniw. we Wroctawiu. ul. Sienkiewicza 21. WROCLAW, Poland 



a. The morphogenetical functions of the thyroid gland and hypophysis. 

 (Amphibia, Reptilia, Aves) 



b. Pigmentation and the endocrine glands. (Amphibia) 



NOESCH, H. D.Sc. Prof. — Zool. Anstalt der Univ., Rheinsprung 9, 

 BASEL. Schweiz 



a. Einfluss des Nervensystems auf die Entwicklung anderer Organe. Telea 

 polyphemus (Saturniidae, Lepidoptera) 



b. Entwicklung der imaginalen Muskeln. (Neuroptera, Lepidoptera) 



c. Entwicklung des Nervensystems. (Insecta) 



NUMANOI, H. Ph.D. — Biol. Inst., Coll. of Gener. Education, Univ. of 

 Tokyo, TOKYO, Japan 



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