d Nucleo-cytoplasmic interaction during early development. (Amphibia) 



e Cell interactions in relation to cytodifferentiation. (Amphibia) 



• NAKANO, E. D.Sc. — Biol. Inst., Fac. of Sci.. Nagoya Univ.. Chikusa-ku, NAGOYA. 



Japan 

 a Metabolic analysis of early development. Hemicentrotus pulcherrimus (Echinoidea), 



Oryzias lafipes (Teleosfei) 

 NAKANO, Y. M.D.. Prof. — Dept. of Anat., Kansai Med. School, Fumizono-cho, Moriguchi, 



OSAKA. Japan 

 NAKAYAMA, T. M.D. — Anat. Inst., Med. Fac. Nihon Univ., No. 30. Ooyaguchi-kami- 



machi, Itabashi-ku, TOKYO. Japan 

 NAKAZAWA, T. Ph.D. — Div. of Biol., Nat. Inst, of Radiol. Scis., Anagawa 4-9. CHIBA. 



Japan 

 a Effects of ionizing radiations on the biochemical mechanism of embryonic development. 



Artemia salina (Anosfraca, Crustacea) 

 b Changes in nucleic acids and some other phosphorous fractions of tissues during late 



embryonic and early postnatal development. Rattus norvegicus (Rodentia) 

 NANNEY. D. L. Ph.D., Prof. — Dept. of Zool.. Univ. of Illinois, 345 Nat. Hist. Build., 



URBANA, 111. 61801, U.S.A. 

 a Genetic and developmental studies on cortical variations. Tetrahymena pyriformis (Ciliata) 

 h Regulation of gene action in clonal cultures. Tetrahymena pyriformis (Ciliata) 

 NARBAITZ. R. M.D. — Dept. of Histol. and Embryol., Coll. of Dental Surgery, Univ. of 



Maryland. Lombard and Green St., BALTIMORE. Md. 21201. U.S.A. 

 a Gonadal differentiation (organ culture, histochemistry). Gallus domesticus (Aves) 

 NASH. D. Ph.D. — Dept. of Genet.. Univ. of Alberta. EDMONTON, Alberta. Canada 

 a Studies on metabolite incorporation during early development. Drosophila melanogaster 



(Diptera) 

 h I n V i V o and in vitro development of polytene chromosome DNA synthetic capacity 



and location. Drosophila melanogaster (Diptera) 

 c Developmental genetics of "Hairless" mutant. Drosophila melanogaster (Diptera) 

 NATON, E. Dr.rer.nat. — Bayer. Landesanstalt iur Bodenkultur, Pflanzenbau und Pflanzen- 



schutz. Menzingerstr. 54 (Postfach), 8-MuNCHEN 38. Deutsche Bundesrepublik 

 a Manifestations of experimental carnitine deficiency: alimentary canal, moulting, endocrine 



glands, deposition of fat and glycogen. Tribolium destructor (Tenebrionidae, Coleoptera) 

 h Problems connected with longevity and fecundity. Tribolium destructor (Tenebrionidae, 



Coleoptera) 

 c Rearing and sterilization. Psila rosae (Diptera) 

 NAVAGIRI. Mrs. S. M.B.B.S. — Dept. of Anat., Med. Coll., NAGPUR 3, Maharashtra 



State, India 

 a Morphogenesis of the limb. Gallus domesticus (Aves) 



NAVARATNAM, V. Ph.D. — School of Anat., Univ. of Cambridge, Downing St., CAM- 

 BRIDGE, England 

 a Ontogenesis of cholinesterase and raono-amine activity in cardiac innervation. (Mam' 



malia, incl. Homo sapiens) 

 h Differentiation of argyrophile cells in the pancreas. Rattus norvegicus (Rodentia), Homo 



sapiens (Primates) 

 NAYLOR, E. Ph.D. — Dept. of Zool., Univ. Coll. of Swansea, Singleton Park, SWANSEA, 



Glamorganshire, Wales, U.K. 

 a Laboratory rearing of larvae. Carcinus maenas (Decapoda, Crustacea) 

 h Changes associated with metamorphosis to the non-feeding adult phase. Naesa ( = Dyna' 



mene) bidentata (Isotopa, Crustacea) 

 NEBEL, L. A. M.D. — Dept. of Anat., The Hebrew Univ. — Hadassah Med. School, P.O. 



Box 1172, JERUSALEM, Israel 

 a The effect of hypervitaminosis D2 on foetal osteo- and organogenesis and on the Ca - P 



metabolism during pregnancy. Rattus rattus (Rodentia) 

 NEDVIDEK, J. RNDr. — Dept. of Gener. and Exper. Zool., Fac. of Sci.. Charles Univ., 



Vinicna 7, PRAHA 2, Czechoslovakia 

 a Nucleic acids and subcellular particles in oogenesis and early development. (Amphibia) 



(in collaboration with Mrs. V. VILIMKOVA (HABROVA) ) 

 b Transplantation of nuclei in relation to nucleic acids. (Amphibia) (in collaboration with 



F. SLADECEK) 

 NEEDHAM. A. E. D.Sc. — Dept. of Zool., Parks Rd.. OXFORD, England 

 • NEEDHAM, J. Dr., Prof.(Emer.) — Gonville and Caius Coll., CAMBRIDGE. England 

 NEOGY. R. K. Dr. — Chittaranjan Natl. Cane. Research Centre, 37 S.P.Mookerjee Rd.. 



CALCUTTA 26, India 

 NEULAT, Miss M. M. — Section de Biol, generale et appliquee, Fac. des Sci., Univ. de Lyon, 



43, Bd. du 11 Novembre 1918. 69-VILLEURBANNE, France 

 a Metabolisme des acides nucleiques dans la gonade et dans la glande sericigene. Bombyx 



mori (Lepidoptera) 



109 



