NiC'Nor 



NICOLET. G. D.Sc. — Lab. d'Embryol. exper., Inst. d'Anat., Fac. de M^d., 

 Univ. de Geneve, 20 Rue de I'Ecole de Medecine, GENEVE, Suisse 

 a. The action of Lithium chloride on the embryo. Gallus domesticus (Aves) 

 h. Studies of the fate of the different parts of the primitive streak with the 

 help of grafts labelled with tritiated thymidine. Gallus domesticus 

 (Aves) 

 NIE C. J. van D.V.M. — Veter. Anat. and Embryol. Inst., State Univ. of 

 ' Utrecht, Bekkerstr. HI, UTRECHT, Netherlands 

 — private address: Pasteurstr. 1, LEIDEN, Netherlands 



a. Ontogenetic malformations of the heart. Sus scco[a. Bos taurus (Artio- 

 dactyla) 



b. Pathological development of heart and vessels. Sus scrofa. Bos taurus 

 (Artiodactyla) 



c. Pathological development of bone. Sus scrofa (Artiodactyla) 

 NIERMEYER, Miss E. K. M.Sc. — Zool. Lab., State Univ. of Utrecht. 



Janskerkhof 3, UTRECHT. Netherlands 

 a. Influence of actinomycin and other antibiotics on certain stages of de- 

 velopment. Limnaea stagnalis (Gastropoda) 

 NIEUWKOOP, P. D. Phil.Dr., M.I. I.E., Prof. — Hubrecht Lab. (Intern. 

 Embryol, Inst.), p/a Universiteitscentrum "De Uithof", UTRECHT, 

 Netherlands 



a. Analysis of neural and mesodermal competence of the ectoderm with 

 various techniques. Amby stoma mexicanum (Urodela) (in collaboration 

 with J. G. BLUEMINK and Miss G. A. UBBELS) 



b. Pattern formation in artificially activated ectoderm. Amby stoma puncta- 

 tum, A. mexicanum, Rana pipiens (Amphibia) 



c. Analysis of pattern formation in the prosencephalic portion of the neural 

 plate in normal development. Triturus spp. (Urodela) (in collaboration 

 with Miss E. C. BOTERENBROOD) 



d. Causal analysis of early development. Locusta migratoria, Gryllus 

 domesticus (Orthoptera) 



NIGON, V. Dr.es Sci.. Prof. — Lab. de Zool. exper., Fac. des Sci. de Lyon, 

 43 Bd. de I'Hippodrome, VILLEURBANNE, France 



a. Metabolisme des acides nucleiques durant la gametogenese et le de- 

 veloppement. Parascaris equorum (Nematoda), Drosophila melano- 

 gaster (Diptera), Bombyx mori. Galleria mellonella (Lepidoptera), 

 Arbacia lixula (Echinoidea) 



b. Metabolisme dans des diverses phases de revolution. Euglena gracilis 

 (Flagellata) 



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

 Med. and Dental Univ., 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) 



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