Nii-Nou 



b. Metabolisme du calcium au cours du developpement. Arbacia lixula (Echi- 

 noidea) 

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

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



a. Tissue culture studies on metamorphosis. Rana catesbiana, R. japonica, 

 Bufo vulgaris (Anura) 



b. Tissue culture studies on the development and differentiation of dental 

 tissues. Rattus norvegicus albus, Felis domestica, Homo sapiens (Mam- 

 malia) 



c. Tissue culture studies on cell differentiation. Gallus domesticus (Aves) 



d. Identification of fibroblasts in tissue culture. Gallus domesticus (Aves), 

 Rattus norvegicus, Homo sapiens (Mammalia) 



NIJENHUIS. E. D. M.Sc. — Zool. Lab., State Univ. of Utrecht, Janskerkhof 

 3, UTRECHT, Netherlands 



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 (Gas- 

 tropoda) 



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

 stagnalis (Gastropoda) 



d. Influence of various factors on mitosis and cleavage. Limnaea stagnalis 

 (Gastropoda) 



NIKITINA, Mrs. L. A. — Inst, of Animal Morphol., Acad, of Sci. of the 

 U.S.S.R.. First Academic St. 12, MOSCOW V-133, U.S.S.R. 

 a. Nuclear transplantation from the gastrula ectoderm, neural plate, eye 

 rudiment and early endoderm. Rana arvalis, Bufo bufo (Anura) (in col- 

 laboration with Miss O. G. STROEVA) 

 NILSSON, O. M.D. — Dept. of Histol., Karolinska Inst., Solnavagen 1, 

 STOCKHOLM 60, Sweden 

 a. Electron microscopy of egg implantation. Mus musculus (Rodentia) 

 NILSSON, S. Med.Dr. — Dept. of Anat., Univ. of Gothenburg, GOTE- 

 BORG-SV, Sweden 

 a. Development of the seminal vesicle. Homo sapiens (Primates) 

 NISHIITSUTSUJI (UWO), Mrs. J. D.Sc. — Lab. of Developmental Biol., 

 Zool. Inst., Fac. of Sci., Kyoto Univ., KYOTO, Japan 

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

 nica, Philosamia cynthia ricini (Lepidoptera) 

 NISHIMURA, H. N. M.D., Prof. — Dept. of Anat., Kyoto Univ., Sakyo-ku, 

 KYOTO, Japan 



a. Various factors which control the action of some teratogenic agents. Mus 

 musculus (Rodentia) 



b. Developmental variations and deformities in early embryos. Homo sa- 

 piens (Primates) 



c. Relationship between development and ageing. Mus musculus (Rodentia) 

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



Higashi-senda-cho, HIROSHIMA, Japan 



a. Synthesis of amphidiploids. (Ranidae, Anura) 



b. Synthesis of nucleo-cytoplasmic hybrids between different species. (Rani- 

 dae, Anura) 



NIU, M. C. Ph.D., M.I.I.E., Prof. — Dept. of Biol., Temple Univ., PHILA- 

 DELPHIA 22, Pa., U.S.A. 



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