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



(Fungi) 

 N0RREVANG, A. D.Sc. — Inst, of Comp. Anat, Universitetsparken 15, DK-2100 COPEN- 

 HAGEN 0, Denmark 

 NORSTOG, K. J. Ph.D., Prof. — Dept. of Biol. Sci., Northern Illinois Univ., DeKALB, 111. 



60115, U.S.A. 

 a Development of cultured tissues. Cycadales and other spp. (Gymnospermae), cereals and 



other spp. (Angiospermae) 

 b Embryology (tissue culture and electron microscopy). Hordeum vulgare (Gramineae) 

 NOTHIGER, R. Ph.D. — Zool.-vergl. Anat. Inst., Univ. Zurich, Kunstlergasse 16, 8006 



ZURICH, Switzerland 

 a Sex determining genes studied at the cellular level. Drosophila melanogaster (Diptera) 

 b Genetic analysis of hybrids by means of induced mitotic recombination. Drosophila 



melanogaster x D. simulans (Diptera) 

 NOTO, T. D.Sc. — Dept. of Anat., Kagoshima Univ., 7-82 Shiroyama-cho, KAGOSHIMA, 



Japan 

 a Tissue transformations in isolated pieces of early blastoderm caused by RNA extracted 



from 10-day embryos, pretreated with actinomycin D. Gallus domesticus (Aves) 

 b The effects of embryonic heart RNA on the isolated crescent area and heart-forming area 



in the early blastoderm. Gallus domesticus (Aves) 

 c Theoretical considerations on gene differentiation. 

 NOUMURA, T. D.Sc. — Div. of Endocrinol., Natl. Cane. Center Research Inst., Tsukiji 5, 



Chuo-ku, TOKYO, Japan 

 a Identification of embryonic gonadal hormones in sex differentiation. Gallus spec. (Aves), 



Rattus spec. (Rodentia) 

 b Mechanism of hormone action on developing genital systems. Same species as a 

 NOVAK, V. J. A. D.Sc. — Dept. of Physiol., Inst, of Entomol., Czechoslov. Acad, of Sci., 



Na Folimance 5, PRAHA 2, Czechoslovakia 

 NOVEL, G. Dr.spec. — Lab. de Zool., Inst, de Rech. Biol., Univ. Scient, et Med. de 



Grenoble, Cedex 53, 38 GRENOBLE, France 

 a Role of epidermis and dermis in feather pattern formation. Gallus domesticus (Aves) 

 b Effects of hydrocortisone treatment on skin morphogenesis. Same species as a 

 NOWAK6WNA, Miss J. D.Sc. — Inst, of Zool., Univ. of Wroclaw, ul.Sienkiewicza 21, 



WROCLAW 2, Poland 

 a Cytological and cytochemical studies in early development. Embletonia pallida (Opistho- 



branchia. Gastropoda) 

 b Experiments on morphogenetic role of endocrines in metamorphosis. (Amphibia) 

 NOESCH, H. Dr.sci.nat, Prof. — Zool. Anstalt der Univ., Rheinsprung 9, 4051 BASEL, 



Switzerland 

 a Metamorphosis. (Insecta) 

 NUGEYRE, P. — Lab. d'Histol.-Embryol., Fac. de Med., Bd. Winston Churchill, B.P. 38, 



63 CLERMONT-FERRAND, France 

 a Cytologic ultrastructurale du pancreas neo-natal 

 NUMANOI, H. Ph.D., Prof. — Biol. Lab., Sch. of Educ, Waseda Univ., Tozuka, Shinjuku 



-ku, TOKYO, Japan 

 NUSSBAUM, N. S. Ph.D., Prof. — Dept. of Biol. Sci., Div. of Sci. and Engin., Wright 



State Univ., Col.Glenn Highway, DAYTON, Ohio 45431, U.S.A. 

 a Hormonal aspects of mineralization as studied in hypophysectomized, mature animals 



(using regenerating scales as test objects). Carassius auratus, Fundulus heteroclitus 



(Teleostei) 

 b Electron micrographic aspects of scale regeneration in non-juvenile animals (autoradio- 

 graphy and cytochemical techniques applied at ultrastructural level). Carassius auratus 



(Teleostei) 

 OAKLEY, G. P. M.D. — Central Lab. for Human Embryol., Dept. of Pediat., School of 



Med., Univ. of Washington, SEATTLE, Wash. 98105, U.S.A. 

 a Blastocyst chromosomes with regard to delayed fertilization. Rattus spec. (Rodentia) 

 b Epidemiology of birth defects in spontaneous abortions and newborns. Homo sapiens 



(Primates) 

 OBERLANDER, H. Ph.D. — Insect Attractants, Behavior and Basic Biol. Res. Lab., U.S. 



Dept. of Agric, Agric. Res. Serv., 1700 S.W. 23rd Drive, GAINESVILLE, Fla. 32601, 



U.S.A. 

 a Cellular aspects of the hormonal control of metamorphosis. Galteria mellonella, Plodia 



interpunctella (Lepidoptera) 

 b Developmental behavior of imaginal discs in vivo and in vitro. Same species as a 

 OBIKA, M. D.Sc. — Dept. of Biol., Keio Univ., YOKOHAMA-Hiyoshi, Japan 

 a Correlation between pigment formation and pterin derivatives during development. 



(Amphibia) 

 b Experimental and electron microscopic studies on the cytodifferentiation of chromatophores. 



Hynobius tokyoensis, H. nigrescens, Ambystoma mexicanum, Triturus pyrrhogaster 



(Urodela), Xenopus laevis, Bufo vulgaris, Rana japonica (Anura) 



134 



